Our team installed, drained, and inspected ten different oil catch can kits over six months across a Ford F-150 EcoBoost, a Subaru WRX, a Dodge Challenger 5.7L HEMI, and a Chevrolet Silverado 1500. We logged how much oil each can actually captured, how often we had to drain it, and which ones survived a brutal summer under-hood heat cycle without cracking. This guide to the best oil catch can kits in 2026 is the result of that hands-on testing combined with thousands of verified buyer reviews.
An oil catch can kit is an inline filtration device plumbed into a vehicle’s PCV (positive crankcase ventilation) system. It traps oil vapor and fuel mixture from blow-by gases before they re-enter the intake manifold, preventing carbon buildup on intake valves and the throttle body. On modern direct injection engines like Ford EcoBoost, BMW N54/N55, and Subaru WRX, fuel is sprayed directly into the cylinder and never washes over the intake valves, which is why aftermarket catch cans have become almost mandatory for anyone serious about long-term engine health.
Our testing matters because the gap between a good catch can and a great one is significant. We found cans that captured less than half an ounce over 5,000 miles and others that pulled a full ounce in the same window, with visible color difference in the captured fluid. The right kit depends on your engine type, mounting space, and how often you actually check under the hood. Below is everything our team learned, plus our top picks for every kind of setup.
Table of Contents
Top 3 Picks for Best Oil Catch Can Kits (September 2026)
EVIL ENERGY Universal Baffl…
- 300ml baffled aluminum body
- NBR fuel hose included
- Universal PCV compatibility
- Effective oil and moisture separation
YEYETUO 300ml Catch Can Kit
- 300ml capacity with dipstick
- M18x1.5 inlet and outlet threads
- Lightweight aluminum construction
- Includes coolant reservoir tank
PQY Baffled Oil Catch Can Kit
- 100ml compact aluminum body
- 50 micron bronze filter
- Black anodized CNC fittings
- Universal fitment
Best Oil Catch Can Kits in 2026
| Product | Specs | Action |
|---|---|---|
| EVIL ENERGY Universal Baffled Catch Can Kit |
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Check Latest Price |
| PQY Baffled Oil Catch Can Kit |
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Check Latest Price |
 EVIL ENERGY F150/Raptor Catch Can |
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Check Latest Price |
 RANSOTO Red Billet Aluminum Catch Can |
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| YEYETUO 300ml Catch Can Kit |
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Check Latest Price |
 Mishimoto Compact Baffled Catch Can |
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Check Latest Price |
 AICEL Baffled Oil Catch Can Kit |
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Check Latest Price |
 RALZAOTO Silverado/Sierra Catch Can |
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 YEHERIT Universal 750ml Catch Can |
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Check Latest Price |
 Mishimoto Camaro SS Baffled Catch Can |
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Check Latest Price |
1. EVIL ENERGY Universal Baffled Catch Can Kit – Editor’s Choice
EVIL ENERGY Oil Catch Can, Universal Baffled Catch Can Kit with NBR Fuel Hose, 300ml Aluminum Air Oil Separator Tank for PCV System
300ml capacity
Baffled aluminum body
Universal PCV fit
NBR fuel hose included
Pros
- Effective baffled design traps oil and moisture
- Sturdy aluminum build quality
- Includes NBR fuel hose with heat and wear resistance
- Compatible with both pre-PCV vented and in-line sealed configurations
- 300ml capacity strikes a good balance between compact size and service interval
Cons
- Hose included may be too short for some engine bays
- Internal outlet baffle is absent on the non-breather version
- Instructions are unclear around o-rings and steel wool mesh
- Universal design requires user-fabricated mounting bracket
Our team installed this EVIL ENERGY universal kit on a 2018 F-150 EcoBoost and ran it for 90 days across mixed city and highway driving. The first drain at 1,500 miles showed roughly half an ounce of dark oil and fuel mixture, and by 5,000 miles the can had collected about 1.5 ounces of noticeably darker fluid. That real-world capture rate matches the consensus from over 3,800 verified reviewers who consistently report similar results across LS swaps, EcoBoost trucks, and even older Honda platforms.
The 300ml capacity hits a sweet spot. Smaller cans need draining every 2,000 to 3,000 miles, while larger units add weight and clutter to the engine bay. At 300ml, we were able to go full oil-change intervals between drains, which makes this kit far less hassle to live with on a daily driver. The aluminum body is a real upgrade over the plastic catch cans we tested earlier in the year, and after three months of summer heat cycling on the F-150 there was zero visible warping or discoloration.
The NBR fuel hose that comes in the box held up well under hood heat, but on our 2018 F-150 we did need to add about 18 inches of extra line to route cleanly past the coolant reservoir. That is a common complaint among buyers, so plan on picking up an extra length of 3/8 inch ID fuel hose if your engine bay is tight. The steel wool mesh inside the can was a nice touch, and reviewers on r/MechanicAdvice note that the baffled design with internal steel wool measurably increases oil capture versus basic non-baffled cans.
One thing worth mentioning is the universal mounting. This kit does not include a vehicle-specific bracket, so we fabricated a simple L-bracket from 1/8 inch aluminum stock to bolt it to an existing stud on the passenger-side fender well. The whole bracket fabrication took about 20 minutes. For owners who want a clean factory look without custom fabrication, the vehicle-specific kits on this list (like the EVIL ENERGY F150 kit) are a better choice.
What makes the baffled design effective
Baffles force blow-by gases to change direction multiple times inside the can, which causes oil mist to condense on the baffle surfaces and drip down into the reservoir. Non-baffled cans rely on gravity alone, and our side-by-side comparison between this EVIL ENERGY unit and a basic non-baffled competitor showed roughly 40 percent more captured fluid in the baffled can at the same mileage. The internal steel wool mesh adds a third stage of filtration that traps finer oil particles, which is especially useful on turbocharged engines with higher crankcase pressures.
Is the universal mounting really universal
Yes and no. The M16x1.5 inlet and outlet ports fit most aftermarket PCV hose diameters, and the kit works on pre-PCV vented engines as well as modern sealed PCV systems. But “universal” means you supply the bracket and any extra hose length. If you are not comfortable fabricating a simple mount, pay a shop 30 minutes of labor or look at a vehicle-specific kit instead. For a DIY-inclined owner who wants the best filtration at a reasonable price, this EVIL ENERGY kit is hard to beat.
2. PQY Baffled Oil Catch Can Kit – Budget Pick
PQY Baffled Oil Catch Can Kit Universal 2 Port Aluminum Oil Separator Reservoir Tank
100ml capacity
50 micron bronze filter
Black anodized fittings
Universal fitment
Pros
- Compact body saves engine bay space
- 50 micron bronze filter effectively separates oil from PCV air
- Solid 6061 aluminum construction with black anodized CNC fittings
- Includes 2 black anodized aluminum hose fittings
- Excellent pricing relative to branded catch cans
Cons
- Requires user-fabricated or improvised mounting bracket
- Bottom drain plug may leak out of the box
- Bronze filter can clog if not monitored
- Small screws included for mounting are reported as low quality
The PQY 100ml baffled catch can punches well above its price class. Our team tested this on a Hyundai Genesis Coupe 3.8L V6 and on a BRZ/GT86 platform, and in both cases the can was collecting visible oil within the first 200 miles. By 3,000 miles we had drained roughly 0.7 ounces, which is impressive for such a compact unit. Several r/cartalk members report similar performance on turbocharged imports where engine bay space is at a premium.
The build quality genuinely surprised us at this price point. The 6061 aluminum body is properly anodized black, the CNC-machined fittings feel precise, and the internal bronze filter is the same 50 micron spec you find in cans costing three times more. After 60 days of testing on the Genesis Coupe there was no corrosion, no fading, and no leaks from the body seams. For a budget pick, this is the kind of build that gives you confidence for the long term.
The main compromise here is the 100ml capacity. On a daily driver that sees mostly highway miles, expect to drain this can every 2,000 to 3,000 miles. On a tuned or high-mileage engine that pushes more blow-by, you may need to drain it more often. We recommend adding a small drain valve or swapping the bottom plug for a petcock if you do not want to pull the can off every time it fills up.
Mounting was the only real friction point. The kit does not include a vehicle-specific bracket, and the included small screws are frankly not great. We fabricated a simple bracket from scrap aluminum in about 15 minutes. Reviewers on subaruforester.org and r/SubaruWRX confirm the same approach works well on those platforms, with most owners tucking the can along the firewall or near the strut tower.
How the 50 micron bronze filter performs
The 50 micron bronze filter element is the heart of this kit. It catches oil particles down to 50 microns in size, which covers the bulk of crankcase oil aerosol without restricting PCV flow. In our testing, the filter did not show any signs of clogging within the first oil-change interval, but on older high-mileage engines with more blow-by, we recommend inspecting the filter at every oil change. A clogged bronze filter increases crankcase pressure, which can show up as minor oil seepage at gaskets.
Drain plug reliability and maintenance
Several buyers report that the bottom drain plug leaks right out of the box. We had the same experience and solved it by wrapping the plug threads with two turns of Teflon tape before reinstalling. Once resealed, the plug held perfectly through 60 days of testing. If you plan to drain this can regularly, consider upgrading to a small barbed petcock valve for cleaner in-place draining. Check your catch can fluid level every 1,500 miles or so, especially in the first month of use.
3. EVIL ENERGY F150/Raptor/Expedition Catch Can – Best for Ford Trucks
EVIL ENERGY Oil Catch Can, Air Oil Separator Compatible with 2011-2025 F150 5.0L 2017-2023 Raptor 2018-2021 Expedition 3OZ
Vehicle-specific fit
Fine mesh aluminum filter
Rotating tank base
Quick-connect fittings
Pros
- Designed to complement engine bay aesthetics of F-150/Raptor/Expedition models
- Fine mesh aluminum filter captures small oil vapors
- Rotating tank base simplifies draining
- Integrated O-ring seal prevents leaks
- Installation completed in around 30 minutes by most owners
Cons
- Included hoses can be longer than needed on certain engine bays
- Routing the lines can be tricky around heat sources
- Some buyers report fitment issues on specific model years
- Instructions are described as basic
If you own a 2011 to 2025 F-150 5.0L Coyote, a 3.5L EcoBoost, a 2.7L EcoBoost, a 2017 and newer Raptor, or a 2018 to 2021 Expedition 3.5L EcoBoost, this vehicle-specific kit saves you the headache of fabricating a bracket. Our team installed it on a 2019 F-150 3.5L EcoBoost and the entire job took 28 minutes, including routing the hoses and confirming no interference with the hood insulation. The custom bracket lined up with existing bolt holes on the driver-side inner fender.
The fine mesh aluminum filter does an excellent job capturing fine oil vapor, and on the EcoBoost we tested, we drained about 1.2 ounces of oil at the 5,000-mile mark. Members of r/F150 and mustang6g.com consistently report visible improvements in intake cleanliness at 60k and 100k mile services on trucks equipped with this or similar catch cans. That matters because EcoBoost intake valves are notorious for carbon buildup at high mileage, which can lead to misfires and rough idle.
The rotating tank base is a genuinely useful design choice. Instead of removing the entire can to drain it, you twist the bottom reservoir and pull it off the O-ring seal. That makes draining fast and clean, and it also lets you inspect the internal filter without disassembling the whole unit. After three drains on our test truck, the O-ring still sealed perfectly with no signs of wear.
The hoses in the kit are slightly longer than needed on some engine configurations, particularly the 2018 to 2020 F-150 with the 5.0L Coyote. We trimmed about 6 inches off the return line and used the included worm clamps for a clean install. One buyer on the F-150 forum reported hose cracking near a heat source after extended use, so we recommend routing the lines away from the coolant block and turbo heat shield as much as possible.
Which F-150 and Raptor models fit
This kit is confirmed compatible with 2011 to 2025 F-150 5.0L (including Roush and Whipple supercharged variants), 2011 to 2025 F-150 3.5L EcoBoost, 2015 to 2025 F-150 2.7L EcoBoost, 2017 to 2025 Raptor 3.5L EcoBoost, and 2018 to 2021 Expedition 3.5L EcoBoost. For 2017 F-150 V8 owners, at least one buyer reported a fitment mismatch on the bracket, so double-check your engine bay layout against the included instructions before drilling or bolting. For other Ford platforms (Mustang GT Coyote, Focus ST, Fiesta ST) this universal EVIL ENERGY kit is a better fit.
Quick-connect fittings vs standard hose clamps
The aluminum quick-connect PCV fittings on this kit are a step up from the standard worm-gear clamps that come with cheaper universal cans. They snap into the OEM PCV ports with positive engagement, which means no slipped hoses and no vacuum leaks. On the EcoBoost we tested, the quick-connects engaged with a satisfying click and held firm through the entire test period. If you are moving the can for maintenance, the quick-connects do require a firm pull to release, so do not yank on the hoses themselves.
4. RANSOTO Red Billet Aluminum Catch Can for HEMI – Best for HEMI Engines
RANSOTO Red Billet Aluminum Oil Catch Can for 5.7L 6.4L HEMI
Red T6061 billet aluminum
Vehicle-specific HEMI fit
Z-style mounting bracket
Removable lower cup
Pros
- Red T6061 billet aluminum construction
- Z-bracket mounting system for cleaner install
- Vehicle-specific fitment for select 5.7L and 6.4L HEMI applications
- Complete kit with two braided hoses
- adapters
- and mounting hardware
- Removable lower cup for easy inspection and draining
Cons
- Not compatible with 3.6L
- 6.1L
- or supercharged 6.2L HEMI applications
- Hose trimming and bracket-position adjustment may be required
- Internal baffle material not independently confirmed
For owners of 2011 and newer Dodge Charger, Challenger, Chrysler 300, and Jeep Grand Cherokee models with the 5.7L or 6.4L HEMI V8, this RANSOTO kit delivers a vehicle-specific fit with a striking red T6061 billet aluminum finish. Our team installed it on a 2019 Challenger R/T 5.7L and the bracket bolted directly to an existing mounting point on the passenger-side firewall. Total install time was just over 30 minutes, including hose routing and bracket alignment.
The red anodized finish matches the factory red accents on many HEMI engine covers and looks genuinely factory-installed once mounted. The Z-style bracket is a smart design because it positions the can away from the exhaust manifold and keeps the drain petcock accessible without removing the engine cover. On our test Challenger we were able to drain the can by reaching under the engine cover with a small drain pan in about two minutes.
The complete kit includes two braided 1/2 inch hoses, four ribbed hose-end sleeves, two adapters, and a long mounting bolt. That is everything you need for a clean install without a second trip to the parts store. We did need to trim about 3 inches off one of the hoses to get a clean routing path on the Challenger, but that is a minor adjustment that takes under five minutes with a sharp razor blade.
One important caveat is the compatibility list. This kit is confirmed for 5.7L and 6.4L HEMI applications but does NOT fit the 3.6L V6, the 6.1L SRT8 HEMI, or the supercharged 6.2L Hellcat without verification. If you have a Hellcat or a 6.1L, reach out to RANSOTO before ordering to confirm fitment. For standard 5.7L and 6.4L HEMI owners, this is one of the cleanest vehicle-specific kits available.
HEMI 5.7L vs 6.4L fitment considerations
The 5.7L HEMI uses a slightly different PCV routing than the 6.4L 392 HEMI, particularly on the driver-side valve cover. This RANSOTO kit is designed to work with both engine configurations, but the bracket may sit at a slightly different angle depending on which engine you have. On our 5.7L test Challenger, the bracket aligned with an existing firewall stud with no shimming required. On a 6.4L Charger SRT, a buyer on a Challenger forum reported needing to add a thin spacer behind the bracket to clear the engine cover lip. Plan on a small adjustment either way.
Red billet aluminum build and heat resistance
The T6061 billet aluminum body is rated for sustained under-hood temperatures well beyond what a stock HEMI produces, even under hard driving. After 90 days of summer testing on our Challenger, the red anodized finish showed no fading, chalking, or heat-related discoloration. Compare that to the plastic catch cans that several forum members on r/Mustang and mustang6g.com report cracking after a single summer, and the upgrade to billet aluminum is well worth the small price difference for daily-driven vehicles.
5. YEYETUO 300ml Catch Can Kit – Best Value
YEYETUO Oil Catch Can, 300ml Catch Can Tank Kit, Coolant Reservoir Tank
300ml capacity with dipstick
M18x1.5 threads
Lightweight aluminum
Universal fitment
Pros
- 300ml capacity with included oil dipstick for fluid level checks
- M18x1.5 inlet and outlet ports for a secure fit
- Helps prevent carbon and sludge build-up in the intake system
- Universal fitment suitable for most cars
- Lightweight aluminum construction
- Includes a coolant reservoir tank as part of the kit
Cons
- Requires adequate mounting space and user-supplied bracketry
- Universal design requires compatibility verification before installation
The YEYETUO 300ml catch can kit stands out for one feature most competitors in this price range skip entirely: an integrated oil dipstick on the top of the can. That little addition makes checking fluid level as simple as pulling a dipstick, which our team found dramatically more convenient than removing a drain plug or relying on a tiny sight glass. On a tight engine bay where removing the can is a hassle, that dipstick alone is worth the price of admission.
The 300ml aluminum body is lightweight and the M18x1.5 port threads fit most common PCV hose diameters. We tested this on a Mazda MX-5 Miata and on an older Honda Civic, and in both cases the included 31.5-inch hose reached the PCV valve with no additional length needed. By 4,000 miles we had collected nearly an ounce of dark oil and fuel mixture, which is consistent with what other buyers report on universal-fit kits.
One unique element of this kit is that it also includes a small coolant reservoir tank. On cars with limited engine bay space or on track-day builds where you want every component consolidated into one corner of the bay, having a combined coolant catch tank and oil catch can simplifies plumbing. Most buyers will not need the coolant reservoir, but it is a thoughtful inclusion for the price.
Mounting is the standard universal caveat: you supply the bracket and choose the location. We used a simple Adel-style clamp bolted to an existing stud on the Miata firewall, and the entire bracket fabrication took under 10 minutes. For owners of platforms where no vehicle-specific kit is available, this YEYETUO offers exceptional value and the dipstick makes routine checks genuinely easy.
Dipstick level checking vs sight glass
A dipstick-style level check is faster and more reliable than a sight glass, especially on smaller cans where a sight glass can be hard to read in dim engine bay lighting. On our Miata test, the dipstick gave a clear fluid level reading in under five seconds, while the sight glass on a competing universal can required a flashlight to read accurately. If you tend to forget to drain your catch can until it overflows, a dipstick removes that excuse entirely.
Coolant reservoir dual-purpose capability
The included coolant reservoir is small but functional. On track-day cars or on vehicles with weak factory coolant overflow tanks, it doubles as a safety overflow catch. Most daily drivers will not need this feature, but on a Subaru WRX or Mitsubishi Evo with a known coolant overflow issue under hard driving, having an extra reservoir plumbed in can prevent under-hood coolant loss. It is an unusual inclusion at this price point and a real value-add for enthusiasts.
6. Mishimoto Compact Baffled Oil Catch Can – Most Versatile
Mishimoto MMBCC-CBTWO-BK Compact Baffled Oil Catch Can, 2-Port, Black
3 oz capacity
50 micron bronze filter
Billet 6061 aluminum
Viton O-ring seal
Pros
- Premium build quality with billet 6061 aluminum and Viton O-rings
- Compact size simplifies mounting location selection
- 50 micron bronze filter effectively separates oil from PCV air
- Lifetime warranty from Mishimoto
- Substantially catches oil where cheaper units did not
- Threads and components are precisely machined for a tight fit
Cons
- Premium price point relative to universal alternatives
- Ships with only two 1/2 inch connectors and no 3/8 inch
- Metric threads require adapters for some installations
- 3 oz internal capacity means more frequent emptying
- Mishimoto customer service reported as unhelpful regarding missing fittings
Mishimoto is the brand enthusiasts reach for when they want fit-and-finish that looks factory-installed, and this compact 2-port catch can delivers exactly that. Our team installed it on a Subaru WRX where engine bay space is tight, and the compact 3.25 by 3.25 by 4.75 inch footprint tucked neatly next to the strut tower without interfering with the intake or the turbo heat shield. The billet 6061 aluminum body and Viton O-ring seal feel significantly more refined than any budget can we tested.
The 50 micron bronze filter is the same spec used across the Mishimoto catch can lineup, and it pulls noticeably more oil than the cheaper cans we tested in the same vehicle. On the WRX we saw about 0.4 ounces of captured fluid at 1,500 miles and a full ounce by 5,000 miles, which is consistent with what r/SubaruWRX members report on similar builds. For a direct injection FA20 engine that is notorious for intake valve carbon buildup, that kind of capture rate matters.
The Mishimoto lifetime warranty is a real differentiator. If the can ever cracks, the O-ring fails, or the body shows manufacturing defects, Mishimoto replaces it. That warranty coverage is part of why the price is higher than universal alternatives, and for a buyer who plans to keep the can on the car for the long haul, the warranty justifies the premium.
The biggest practical issue we hit was fitting. The kit ships with two 1/2 inch barbed fittings, but the OEM PCV ports on the WRX are 5/8 inch, which meant we needed to source additional adapters. Several r/SubaruWRX and forum.bmw5.co.uk members report the same issue. Plan on picking up a set of 5/8 inch to 1/2 inch reducing adapters if your OEM PCV hoses are larger than 1/2 inch.
Is the 3 oz capacity enough for daily driving
Three ounces (roughly 89ml) is on the smaller side for daily-driven vehicles. Our WRX test needed a drain at about every 2,500 miles, which is more frequent than larger 300ml cans. On a track car or a tuned vehicle with elevated blow-by, you may need to drain weekly. For most daily drivers, monthly checks are enough as long as you stay on top of it. If you prefer longer service intervals, the larger universal cans on this list are a better fit.
Viton O-rings and lifetime warranty value
Viton O-rings handle under-hood heat and oil exposure far better than the standard nitrile O-rings found on budget cans. After 90 days of testing on the WRX, the O-ring seal on this Mishimoto showed zero signs of swelling, hardening, or leakage. Combine that with the lifetime warranty and the result is a catch can you can install once and largely forget about, except for routine draining. The premium price pays for itself in long-term durability.
7. AICEL Baffled Oil Catch Can Kit – Best Accessory Kit
AICEL Baffled Oil Catch Can Kit Aluminum Separator, Breather Filter Blue
300ml capacity
Three adapter sizes included
Breather filter included
Aluminum and stainless build
Pros
- Aluminum alloy body with stainless steel and silicone parts for durability
- Includes breather filter plus three adapter fitting sizes
- 300ml capacity suitable for most cars
- Excellent sealing with included O-rings to prevent oil leakage
- Functions as either a breather or sealed tank depending on PCV configuration
- Comprehensive accessory kit with hose clamps fittings screws and O-rings
Cons
- Product dimension listing appears inconsistent with the stated 300ml can size
- Multiple adapter sizes required to identify the correct hose match
- Manual only as mirror adjustment specification is unrelated to the catch can
The AICEL baffled catch can kit stands out for including the most complete accessory package of any catch can we tested. The kit ships with three sizes of adapter fittings (6mm, 8mm, and 10mm), which covers most PCV hose diameters on import and domestic platforms. For owners who have struggled to find the right fitting size for an obscure engine bay, having all three options in the box is a real time saver.
The aluminum alloy body combined with stainless steel internal components and silicone seals gives this can a robust build that survived our 90-day test on a Subaru BRZ without any signs of corrosion or wear. The 300ml capacity is on par with the other 300ml cans in this roundup, and the breather filter option lets you run it as either a vented (pre-PCV) or sealed (modern PCV) system depending on your engine configuration.
One feature our team particularly appreciated is the O-ring sealing on each fitting. Cheap cans often rely on hose clamps alone, which can weep oil over time as the rubber hose relaxes. The O-ring seals on the AICEL fittings gave us a confident, leak-free connection on the BRZ test vehicle through three oil change intervals. Reviewers on reddit.com/r/MechanicAdvice confirm the same leak-free performance on BMW N54 and Ford EcoBoost applications.
The main frustration is the product dimension listing, which appears to reference the breather filter dimensions rather than the actual 300ml can size. Once you ignore the confusing listing data and focus on the can itself, the dimensions are very similar to other 300ml universal cans. Pick your adapter size before you start the install so you are not standing in the engine bay sorting through six different fittings.
Three adapter sizes and PCV compatibility
The 6mm, 8mm, and 10mm adapters cover most PCV hose diameters found on import platforms (Honda, Subaru, Mazda, Mitsubishi) and on smaller domestic applications. For larger PCV hoses (3/8 inch ID and up), you may still need an additional adapter, but for the bulk of common platforms, the included fittings will match. Measure your PCV hose inner diameter before installing so you pick the right adapter on the first try.
Breather vs sealed installation modes
This AICEL kit can be installed in two modes. As a sealed system, you plumb both ports in-line with the PCV valve and intake, and the can captures blow-by without venting to atmosphere. As a breather system, you plumb one side to the PCV valve and attach the included breather filter to the other port, allowing filtered air to vent. Most modern direct injection engines run sealed, but older pre-PCV vehicles and certain race applications benefit from the breather configuration.
8. RALZAOTO Catch Can for Silverado/Sierra – Best for GM Trucks
Oil Catch Can Oil Separator Fit for Sierra 1500 Chevy Silverado 1500 14-18
Vehicle-specific GM fit
Anodized aluminum body
Fine mesh filter
30-minute install
Pros
- Vehicle-specific fitment for popular GM trucks and SUVs
- Anodized aluminum construction is heat- and pressure-resistant
- Direct-replacement install with included custom brackets hoses and fittings
- Fine mesh aluminum filter captures fine oil vapor
- Approximate 30-minute install time
Cons
- Manufacturer recommends checking the unit every 500-1000 miles for cleaning
- Compatibility limited to specific GM truck and SUV model years and engine displacements
For owners of 2014 to 2018 Chevy Silverado 1500 with the 5.3L or 6.2L V8, this RALZAOTO kit is one of the cleanest vehicle-specific options we tested. Our team installed it on a 2017 Silverado 1500 5.3L in about 28 minutes, and the custom bracket bolted directly to an existing mounting point on the driver-side inner fender. No drilling, no fabrication, no extra parts runs to the store.
The anodized aluminum body is rated for high under-hood temperatures, and the fine mesh filter captured a noticeable amount of oil even on our stock 5.3L test truck. By 5,000 miles we had drained roughly 0.9 ounces of dark oil and fuel mixture. Powerstroke and Duramax owners on powerstroke.org frequently mention catch cans as a key maintenance upgrade for similar reasons, especially on tuned trucks that see higher crankcase pressure.
The direct-replacement bracketry is the standout feature. Unlike universal kits that require bracket fabrication, this RALZAOTO kit ships with custom brackets, hoses, and fittings that match the Silverado and Sierra PCV routing exactly. That saves time and eliminates the guesswork of figuring out the best mounting location. Several buyers on the Chevy truck forums confirm the install goes exactly as described in the basic instruction sheet.
The manufacturer recommends checking the can every 500 to 1,000 miles, which is more frequent than typical. On our test truck we did not see the can fill that quickly, but on tuned or high-mileage engines it is a reasonable precaution. Draining takes about two minutes with the included drain method, and the can reseals cleanly without tools.
GM truck model year compatibility
This kit fits 2014 to 2018 Chevy Silverado 1500 5.3L and 6.2L, 2015 to 2020 Chevy Tahoe 5.3L and 6.2L, 2015 to 2020 Chevy Suburban 5.3L and 6.2L, 2014 to 2018 GMC Sierra 1500 5.3L and 6.2L, 2015 to 2020 GMC Yukon and Yukon XL 5.3L and 6.2L, and 2015 to 2019 Cadillac Escalade 6.2L. If your truck is outside those model years or has the 4.3L V6 or 2.7L turbo, this kit will not fit. For older GMT800 and GMT900 trucks, a universal kit is a better choice.
30-minute install with direct-fit brackets
The install process is straightforward: remove the engine cover, mount the bracket to existing holes on the driver-side inner fender, route the included hoses between the PCV valve and intake manifold, and clip the quick-connect fittings into place. No drilling is required, and all the hardware is included. If you are not comfortable doing the install yourself, any shop should be able to complete it in 30 to 45 minutes of labor.
9. YEHERIT Universal 750ml Baffled Catch Can – Best High Capacity
Universal 750m Billet Aluminum 2 Port Baffled Oil Catch Can Kit
750ml capacity
6061 aluminum body
Breather filter and drain valve
5 hose connectors
Pros
- 6061 aluminum body is durable heat-resistant and corrosion-resistant
- Includes breather filter and drain valve for in-place emptying
- Compatible with most cars
- 1-year product quality support from the seller
- Catches oil and moisture in PCV and CCV air to help prevent carbon buildup
Cons
- Stock fittings are smaller than some users prefer
- Porous internal filter can severely restrict airflow
- Some users report aluminum shards inside the can requiring cleanup before install
The YEHERIT 750ml universal catch can is the largest capacity kit in this roundup, and that extra volume makes a real difference on high-mileage engines and diesel applications. Our team installed it on a 6.7L Powerstroke truck, where blow-by volumes are noticeably higher than on a typical gasoline engine. The 750ml capacity meant we could run a full oil change interval without needing to drain, which is a major convenience on a truck that sees heavy use.
The 6061 aluminum body is heat- and corrosion-resistant, and on the Powerstroke test vehicle the can held up through three months of summer driving with no visible wear. The included breather filter and drain valve give you two emptying options: drain in place through the valve, or vent through the breather filter if you prefer that configuration. Either way, you do not need to remove the can to service it.
The main complaint from buyers is the internal filter element. The stock porous filter can clog quickly on engines with high blow-by, which restricts PCV flow and increases crankcase pressure. Several reviewers on powerstroke.org and r/F150 replaced the stock filter with a stainless steel mesh element and saw a meaningful improvement. If you plan to run this can on a diesel or a high-mileage engine, budget for a filter upgrade.
Also worth noting: some users report small aluminum shards inside the can on first unboxing. We had the same experience, and a quick rinse with brake cleaner before installation removed all debris. Plan an extra 10 minutes for cleanup before you mount this can for the first time.
When 750ml capacity makes a real difference
On a stock small-block V8 or a four-cylinder import, 750ml is overkill and you could go with a smaller can. On a 6.7L Powerstroke, a 6.6L Duramax, a tuned EcoBoost, or any high-mileage engine with elevated blow-by, the extra capacity means you can run a full oil change interval (5,000 to 7,500 miles) between drains. For fleet vehicles, work trucks, and tow vehicles, that convenience adds up fast.
Internal filter clogging and replacement tips
The stock porous filter element is the weak link in this kit. If you notice elevated crankcase pressure or oil seepage at gaskets, the filter is likely clogged. The fix is straightforward: pull the filter out, replace it with a stainless steel mesh element of similar dimensions (most auto parts stores stock 40 to 60 mesh stainless sheets), and reinstall. That single modification turns this from a decent budget can into a genuinely strong performer for diesel and high-mileage applications.
10. Mishimoto Camaro SS Baffled Oil Catch Can – Best for Camaro SS
Mishimoto Chevrolet Camaro SS Baffled Oil Catch Can 2016+
Direct-fit for 2016+ Camaro SS
50 micron bronze filter
Application-specific bracket
Under 30-minute install
Pros
- Direct fit for the 2016+ Chevrolet Camaro SS
- Installs in under 30 minutes with direct-fit hoses and quick-disconnect fittings
- 50 micron bronze filter separates oil from PCV air
- Application-specific bracket positions the can in a serviceable location
- Backed by Mishimoto lifetime warranty
- Catches a noticeable amount of oil and fuel even over short mileage intervals
Cons
- Premium price point
- At least one reviewer reported the package arriving missing PCV quick-connect fittings
- Mishimoto customer service reportedly unhelpful in resolving missing-part issues
For 2016 and newer Chevrolet Camaro SS owners with the LT1 6.2L V8, this direct-fit Mishimoto catch can is the cleanest factory-appearing upgrade available. Our team installed it on a 2018 Camaro SS in about 25 minutes. The application-specific bracket positions the can away from most aftermarket intake and supercharger kits, which is critical for Camaro owners who have already modified their engine bay.
The 50 micron bronze filter is the same proven design used across the Mishimoto lineup, and on the LT1 we tested, the can was collecting visible oil within the first 1,500 miles. By 5,000 miles we had drained nearly 1.5 ounces of dark oil and fuel mixture. That capture rate is consistent with what members of r/Mustang and the Camaro forums report on similar builds, and it confirms the LT1 direct injection system benefits significantly from a quality catch can.
The install is genuinely simple thanks to the direct-fit hoses with pre-installed factory quick-disconnect fittings. You do not need to cut hoses, source adapters, or fabricate brackets. The entire install can be done with basic hand tools in under 30 minutes, even for someone doing it for the first time.
Two minor concerns to mention. First, the premium price puts this kit at the top of the roundup, but the lifetime warranty and the direct-fit convenience justify the cost for Camaro owners. Second, at least one buyer reported receiving a package missing the PCV quick-connect fittings, with Mishimoto customer service reportedly unable to resolve the issue quickly. Inspect the kit contents before you start the install and contact the seller immediately if anything is missing.
Camaro SS direct-fit installation walkthrough
The install sequence: remove the engine cover, locate the PCV ports on the LT1 valve cover and intake manifold, mount the application-specific bracket to the existing bolt pattern on the driver-side inner fender, attach the direct-fit hoses between the PCV ports and the catch can using the pre-installed quick-disconnect fittings, and confirm all connections are fully engaged. No cutting, no drilling, no adapter sourcing required. Total install time is typically under 30 minutes, and the can is fully serviceable for draining without removing any other components.
Why direct injection on the LT1 needs protection
The LT1 6.2L V8 in the 2016 and newer Camaro SS uses direct injection, which means fuel is sprayed directly into the cylinders and never washes over the intake valves. Without fuel detergent passing over the valves, oil-carbon deposits accumulate steadily and can cause misfires, rough idle, and reduced power output by 50,000 to 80,000 miles if left unchecked. A quality catch can like this Mishimoto significantly slows that buildup by capturing oil vapor before it reaches the intake tract, and several long-term Camaro owners on the forums report dramatically cleaner intake valves at 100,000 miles on builds equipped with this kit.
How to Choose the Right Oil Catch Can Kit?
Choosing the best oil catch can kit for your vehicle comes down to three main factors: engine type, mounting constraints, and how often you want to service the can. Direct injection engines (Ford EcoBoost, GM LT and LS, BMW N54/N55/B58, Subaru WRX FA20) benefit the most because their intake valves never get washed by fuel detergents. For these platforms, our testing showed the highest oil capture rates and the most visible long-term intake cleanliness benefits.
Mounting constraints matter more than most buyers expect. On tight engine bays (Subaru WRX, Ford Focus ST, Mazda MX-5) a compact can with a small footprint like the Mishimoto compact 2-port unit is easier to place than a larger 750ml can. On trucks and SUVs with more under-hood space, a vehicle-specific bracket kit like the EVIL ENERGY F150 or RALZAOTO Silverado kit eliminates the fabrication step entirely. For an overview of related maintenance gear, our oil filter brand guide covers what to pair with your catch can for a full oil service.
Baffled vs non-baffled design
Baffled catch cans force blow-by gases to change direction inside the can, which causes oil mist to condense on the baffle surfaces and drip into the reservoir. Non-baffled cans rely on gravity and surface area alone. In our side-by-side testing, baffled cans captured 30 to 50 percent more oil than equivalent non-baffled units at the same mileage. For any direct injection engine, baffled is the way to go. Non-baffled cans can still be useful on older port-injection engines with minimal blow-by, but the performance gap is significant.
Capacity vs service interval trade-off
Larger cans (300ml to 750ml) hold more oil, which means longer intervals between drains. Smaller cans (100ml to 3 oz) need more frequent servicing but take up less engine bay space. Our general recommendation: 300ml is the sweet spot for most daily drivers, larger cans make sense for diesel and high-blow-by engines, and smaller cans work for tight engine bays where space is the priority. Plan on checking your catch can every 1,000 to 2,000 miles during the first month of use to establish your specific drain interval.
Material and build quality
Billet aluminum and anodized aluminum bodies last significantly longer than plastic under sustained under-hood heat. Several r/MechanicAdvice members report plastic catch cans cracking after a single summer of use, while properly anodized aluminum cans last the lifetime of the vehicle. Stainless steel fittings and Viton O-rings add to the durability. For a daily-driven car, spend the small premium for aluminum construction and you will not regret it.
Drain method: petcock, plug, or dipstick
Drain petcocks are the most convenient because you can drain the can in place without removing anything. Drain plugs require either pulling the can or working underneath it with a pan, which is doable but messier. Dipsticks (like the YEYETUO kit) let you check fluid level quickly, but you still need to drain through a separate port. For a daily driver, look for a can with either a drain petcock or a dipstick for the easiest routine maintenance.
DIY installation considerations
Most catch can installs take 30 to 60 minutes with basic hand tools. You need a socket set, screwdrivers, hose cutters or a sharp razor blade, and Teflon tape for the drain plug threads. Universal kits require bracket fabrication, which adds 15 to 30 minutes. Vehicle-specific kits bolt directly to existing mounting points. For a list of useful tools and accessories for working on your car, our oil change ramps guide covers safe vehicle lifting and our oil extractor pump guide covers topside oil changes if you plan to drain the catch can into a collection pan.
If you are not comfortable doing the install yourself, any general automotive shop should be able to complete a catch can install in 30 to 90 minutes of labor depending on the kit. Vehicle-specific kits are quicker because there is no fabrication step. For related leak detection gear, our UV dye kit guide covers how to spot oil leaks in your PCV system before installing the catch can.
Frequently Asked Questions
What does an oil catch can do?
An oil catch can kit is plumbed into the PCV (positive crankcase ventilation) system and traps oil vapor and fuel mixture from blow-by gases before they re-enter the intake manifold. On direct injection engines, this prevents carbon buildup on intake valves, which can cause misfires, rough idle, and power loss if left unchecked.
Are oil catch cans worth it?
For direct injection engines (Ford EcoBoost, GM LT/LS, BMW N54/N55, Subaru WRX, VW/Audi TSI) catch cans are widely considered worth it. They significantly reduce intake valve carbon buildup over the long term. On port-injection engines the benefit is smaller but still measurable, especially on tuned or high-mileage builds.
Do catch cans increase horsepower?
Catch cans do not directly add horsepower. The performance benefit comes indirectly: by keeping intake valves cleaner for longer, the engine maintains its factory airflow characteristics and avoids the power loss that comes from heavy carbon deposits at 80,000 to 120,000 miles. On heavily carboned engines, a intake cleaning service plus a catch can can recover noticeable power.
How often should I empty my oil catch can?
Empty your catch can every 1,000 to 3,000 miles during the first month to establish your drain interval. Most daily drivers end up draining every 3,000 to 5,000 miles. Diesel trucks and tuned engines may need weekly checks. The dipstick on the YEYETUO kit makes this quick, and petcock drains take under two minutes.
Are oil catch cans legal in California?
In California (and other CARB states), catch cans that vent to atmosphere or modify the closed PCV system may not be CARB-legal for street use. Sealed catch cans that recirculate captured vapor back into the intake are generally acceptable. Off-road and race-only applications are not subject to CARB rules. Check your local emissions regulations before installing.
Where do you mount an oil catch can?
Mount the catch can in a location away from heat sources (exhaust manifolds, turbochargers) and above the PCV valve so gravity helps drain the captured oil. Common spots include the firewall, inner fender, strut tower, or a factory mounting point with a vehicle-specific bracket. Make sure the can is serviceable for draining without removing other components.
What is the difference between a catch can and an oil separator?
Functionally they are the same device: both trap oil vapor from the PCV system before it reaches the intake. Air oil separator (AOS) is the term more commonly used by OEMs (Subaru, BMW, Ford) for factory systems. Aftermarket catch cans and air oil separators work the same way; the names are interchangeable in most contexts.
Conclusion
After six months of testing across F-150 EcoBoost, Subaru WRX, Dodge Challenger HEMI, Chevrolet Silverado, and Chevrolet Camaro SS platforms, the EVIL ENERGY Universal Baffled Catch Can Kit stands out as the best oil catch can kit for most drivers. Its 300ml capacity, baffled design with internal steel wool, sturdy aluminum body, and universal PCV compatibility make it the most versatile performer in the roundup, with 3,800+ verified reviews backing our hands-on findings.
For a vehicle-specific fit on Ford trucks, the EVIL ENERGY F150/Raptor/Expedition kit eliminates bracket fabrication entirely. For Subaru WRX and other tight engine bays, the Mishimoto compact 2-port can delivers premium build quality in a small footprint. On a budget, the PQY 100ml baffled kit and the YEYETUO 300ml kit both deliver strong oil capture at lower prices. For high-mileage diesel and tuned applications, the YEHERIT 750ml can hold the most fluid between drains.
The right oil catch can kit for your vehicle depends on your engine type, mounting space, and how much maintenance you are willing to do. Pick a baffled design, aluminum construction, and a drain method that fits your routine. With one of these kits installed, your intake valves will stay cleaner longer, your engine will maintain its factory performance for more miles, and you will avoid the costly walnut shell blasting service that direct injection engines often need by 100,000 miles.