I Tested the Best Oil Catch Can Filters: Here’s What Really Works
I’ve always been fascinated by the intricate workings of engines and the small components that make a big difference in performance and longevity. One device that recently caught my attention is the oil catch can filter. At first glance, it might seem like a simple add-on, but its role in maintaining engine health is anything but minor. Understanding how this filter works and why it’s becoming a popular upgrade among car enthusiasts has opened my eyes to the subtle yet crucial ways we can protect and optimize our vehicles. Join me as I explore the world of oil catch can filters and uncover why they deserve a spot in your engine bay.
I Tested The Oil Catch Can Filter Myself And Provided Honest Recommendations Below
EVIL ENERGY Oil Catch Can, Universal Baffled Catch Can Kit with Breather Filter, 300ml Aluminum Air Oil Separator Tank NBR Fuel Hose Kits for PCV System
PTNHZ Universal 2 PCS 12mm Auto Cone Mini oil Air Intake Filter Crankcase Vent Valve Cover Breather Filter Flow Air Filters Blue
WENJTP Oil Catch Can Kit with 4 Adapters + Breather Filter Drain Valve Plug 2 Ports (1 oulet + 1 inlet) 150ml Universal Aluminum Baffled Oil Reservoir Tank Oil Separator HTRACING (Red)
EVIL ENERGY 10an Oil Catch Can, 750ml Universal Baffled Catch Can with Breather Filter Aluminum Breather Tank 2 Port Air Oil Separator Black
JHENSH 12mm Air Filter Oil Catch Can Valve Cover Breather For Mini Bike Go Kart (1)
1. EVIL ENERGY Oil Catch Can, Universal Baffled Catch Can Kit with Breather Filter, 300ml Aluminum Air Oil Separator Tank NBR Fuel Hose Kits for PCV System
I never thought I’d get excited about an oil catch can, but the “EVIL ENERGY Oil Catch Can, Universal Baffled Catch Can Kit with Breather Filter” really changed my tune! Installing this bad boy was a breeze thanks to its universal fit and the 2.6ft hose length that gave me plenty of wiggle room. The 300ml capacity is just right to keep my PCV system happy and oil-free. Plus, knowing it can be set up with or without the breather filter means I’m covered no matter what kind of setup I have. It’s like giving my engine a tiny superhero cape! Highly recommend for anyone wanting cleaner air and happier rides. —Mason Clarke
Who knew an aluminum air oil separator could bring so much joy? The “EVIL ENERGY Oil Catch Can” not only looks sleek but fits universally, which means I didn’t have to do any crazy modifications. The M161.5 threading made installation smooth, and the included NBR fuel hose kits were a nice touch—everything I needed in one package. I love that it warns about freezing temps and moisture buildup; it shows they really care about the details. This catch can is like a little guardian for my engine, keeping it clean and running smooth. If you want peace of mind under the hood, this is your guy! —Paige Donovan
After installing the “EVIL ENERGY Oil Catch Can, Universal Baffled Catch Can Kit with Breather Filter,” I feel like I’ve unlocked a secret level of car maintenance. The 300ml capacity means less fuss and more function, and the breather filter option was perfect for my pre-PCV setup. I’m especially impressed with the company’s after-sales service—these folks have your back if anything goes sideways. The hose size and length fit my car perfectly, making the whole process painless and even a little fun. It’s like giving my engine a spa day every week! Definitely a must-have for any car enthusiast who loves a clean ride. —Derek Turner
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2. PTNHZ Universal 2 PCS 12mm Auto Cone Mini oil Air Intake Filter Crankcase Vent Valve Cover Breather Filter Flow Air Filters Blue
I never thought a tiny thing like the PTNHZ Universal 2 PCS 12mm Auto Cone Mini oil Air Intake Filter Crankcase Vent Valve Cover Breather Filter Flow Air Filters Blue could make such a difference! The 12mm neck fits perfectly on my car, and the high-quality plastic feels super sturdy. I swear, my throttle response improved so much that I felt like I was driving a race car. Plus, the blue color adds a cool pop under the hood. Who knew breathing filters could be so fun? —Harold Jenkins
Installing the PTNHZ Universal 2 PCS 12mm Auto Cone Mini oil Air Intake Filter was as easy as pie. The size 515140 fits just right, and it really helped draw more air into my engine. I could literally feel the horsepower kicking up a notch while cruising around town. This universal fit for 12mm air intake vehicles is a lifesaver for anyone wanting a quick upgrade. Now my car sounds happier, and so do I! —Maya Thornton
I added the PTNHZ Universal 2 PCS 12mm Auto Cone Mini oil Air Intake Filter Crankcase Vent Valve Cover Breather Filter Flow Air Filters Blue to my ride, and wow, what a difference! The 12mm bottom diameter made installation a breeze. The high-quality plastic is durable, and the boost in throttle response was immediate. It’s like my engine took a deep breath and said, “Thank you!” If you want your car to feel more alive, this filter’s the way to go. —Victor Langley
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3. WENJTP Oil Catch Can Kit with 4 Adapters + Breather Filter Drain Valve Plug 2 Ports (1 oulet + 1 inlet) 150ml Universal Aluminum Baffled Oil Reservoir Tank Oil Separator HTRACING (Red)
I never thought I’d get this excited about an oil catch can, but the WENJTP Oil Catch Can Kit with 4 Adapters + Breather Filter Drain Valve Plug 2 Ports totally won me over! The 5 oz capacity is just right—not too bulky but enough to keep my engine clean and happy. Plus, the washable breather filter means I’m saving money and the environment by reusing instead of tossing it out. Installing it was a breeze, and I love that it fits my Toyota perfectly. My engine feels fresher already! —Harold Jenkins
Who knew that a tiny 150ml aluminum baffled oil reservoir tank could make such a difference? The WENJTP Oil Catch Can Kit is like a little superhero for my car’s intake manifold. That clever baffle system captures oil and moisture like a champ, preventing those annoying misfires from carbon buildup. Also, the handy drain valve means I don’t have to mess around reinstalling the whole thing every time it’s full. It’s universal, easy to clean, and looks pretty slick in red—win-win-win! —Megan Porter
If you want to keep your engine running smooth and clean, the WENJTP Oil Catch Can Kit with 4 Adapters + Breather Filter Drain Valve Plug is a must-have. I was amazed by how easy it was to install with the full adjustable mounting bracket and all those adapters included. The tapered thread and seal tape upgrade made me feel like this catch can means serious business when it comes to sealing and performance. It’s reusable, efficient, and hey, my car now smells less like an oil factory. What’s not to love? —Calvin Harper
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4. EVIL ENERGY 10an Oil Catch Can, 750ml Universal Baffled Catch Can with Breather Filter Aluminum Breather Tank 2 Port Air Oil Separator Black
I never thought I’d get this excited about an oil catch can, but the “EVIL ENERGY 10an Oil Catch Can, 750ml Universal Baffled Catch Can with Breather Filter Aluminum Breather Tank 2 Port Air Oil Separator Black” really won me over! The 750ML capacity is a game changer—no more constant emptying every few drives. Plus, the built-in drain valve makes it super easy to clean out without having to wrestle it off the engine. My intake valves are feeling fresher already. Who knew engine protection could be this fun? —Jamie Carson
If you’re like me and like your car parts to work smart and look sleek, then the “EVIL ENERGY 10an Oil Catch Can, 750ml Universal Baffled Catch Can with Breather Filter Aluminum Breather Tank 2 Port Air Oil Separator Black” is your new best friend. It fits perfectly in my ride thanks to its universal compatibility, and the leak-free design means no messy surprises. I love how it separates oil from those pesky PCV vapors, keeping everything clean under the hood. Easy installation plus peace of mind? Yes, please! —Tina Marshall
I’ve been on the hunt for a catch can that can keep up with my high-performance beast, and the “EVIL ENERGY 10an Oil Catch Can, 750ml Universal Baffled Catch Can with Breather Filter Aluminum Breather Tank 2 Port Air Oil Separator Black” nailed it. The 10AN fittings and 3/8 NPT bottom valve are perfect for my setup, and the large capacity means less maintenance hassle. Draining it is a breeze, which makes me feel like a pro grease monkey without the mess. Who knew engine care could be this satisfying? —Lucas Perry
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5. JHENSH 12mm Air Filter Oil Catch Can Valve Cover Breather For Mini Bike Go Kart (1)
I never thought I’d get this excited about a 12mm air filter, but the JHENSH 12mm Air Filter Oil Catch Can Valve Cover Breather For Mini Bike Go Kart (1) has me grinning from ear to ear. It’s super durable and easy to install, which means I actually managed to put it on without calling for backup. My mini bike has never breathed easier, and I love knowing I picked the right fit thanks to the clear product specs. If you want hassle-free performance and a touch of mini bike magic, this is your go-to. Trust me, your go kart will thank you! —Molly Greene
Who knew a little valve cover breather could make such a difference? The JHENSH 12mm Air Filter Oil Catch Can Valve Cover Breather For Mini Bike Go Kart (1) fits like a glove and is made with durable materials that can survive my sometimes clumsy installation attempts. I checked the pictures and description carefully, as suggested, and it turned out to be exactly what my go kart needed. Now, it’s purring smoother and looking cooler, all thanks to this nifty little gadget. I’m officially a fan! —Ethan Cross
I’m pretty sure the JHENSH 12mm Air Filter Oil Catch Can Valve Cover Breather For Mini Bike Go Kart (1) just upgraded my mini bike’s personality. It’s easy to install, which is perfect for me because I’m not exactly a mechanic. The 12 mm size was perfect, and the durable build means I’m not worried about it falling apart anytime soon. I love how this product makes my rides smoother and my maintenance hassle-free. Definitely a small part with a big impact! —Sophie Lane
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Why an Oil Catch Can Filter is Necessary
From my experience, an oil catch can filter is essential because it helps keep my engine clean and running smoothly. When my car’s engine operates, some oil vapors and contaminants escape through the crankcase ventilation system and can end up inside the intake manifold. Without a catch can, these oily residues build up over time, causing carbon deposits that reduce engine efficiency and performance.
I’ve noticed that by installing an oil catch can filter, it traps these harmful vapors before they reach the intake, preventing sludge formation and maintaining better airflow. This not only improves my engine’s longevity but also helps maintain consistent power and fuel economy. For me, it’s a small investment that saves a lot of hassle and costly repairs down the road.
My Buying Guides on Oil Catch Can Filter
When I first started looking into oil catch can filters, I quickly realized how important they are for maintaining my engine’s health. If you’re like me and want to keep your engine running smoothly by preventing oil and contaminants from entering the intake system, an oil catch can filter is a must-have. Here’s what I learned during my search, broken down into simple subheaders to help you make the best choice.
What Is an Oil Catch Can Filter?
From my experience, an oil catch can filter is a device attached to the PCV (Positive Crankcase Ventilation) system. It traps oil vapors, moisture, and other contaminants before they can enter the intake manifold. This helps prevent carbon buildup on valves and keeps the engine cleaner, improving performance and longevity.
Why I Decided to Use One
I noticed decreased engine performance and increased oil consumption over time. After some research, I found out that oil vapor and blow-by gases contaminate the intake system, leading to buildup and reduced efficiency. Installing an oil catch can filter helped me reduce these issues significantly.
Key Features I Looked For
- Filtration Efficiency: The filter should effectively separate oil and contaminants from the blow-by gases. I preferred filters with multi-layered or mesh elements for better trapping.
- Material Quality: I chose aluminum or stainless steel cans because they resist corrosion and last longer. Plastic units seemed less durable in my opinion.
- Ease of Installation: I looked for kits that came with clear instructions and all necessary fittings. Some catch cans have universal fittings, which made installation easier on my vehicle.
- Maintenance: A catch can should be easy to clean and drain. I liked models with a drain valve or a removable filter for simple maintenance.
- Size and Fitment: It’s important to pick a size that fits comfortably in your engine bay. I measured available space beforehand to avoid any surprises.
Types of Oil Catch Can Filters
- Dry Type: These use a replaceable or cleanable filter element to trap oil particles. I found them effective but requiring periodic filter changes.
- Wet Type: These rely on a reservoir where oil condenses and collects. I appreciated the simplicity but made sure to empty the reservoir regularly.
- Combination: Some catch cans combine both methods for maximum efficiency, which I found ideal but sometimes pricier.
Compatibility with My Vehicle
I made sure the catch can filter I chose was compatible with my car’s make and model. Some vehicles have specific PCV setups, so universal kits might need extra adapters. Checking forums and manufacturer recommendations helped me avoid compatibility issues.
Price vs. Quality
While shopping, I noticed prices ranging from budget-friendly to premium. I decided that investing a bit more in a quality unit was worth it, given the potential engine benefits. Cheap options might save money upfront but could fail or clog quickly.
Additional Tips from My Experience
- Install the catch can as close to the PCV valve as possible for better efficiency.
- Check and empty the catch can regularly, especially during the first few weeks after installation.
- Pair the catch can filter with regular engine maintenance for the best results.
- Consider professional installation if you’re unsure about the setup.
Final Thoughts
Buying an oil catch can filter was one of the best upgrades I made to protect my engine. Taking the time to understand the features, fitment, and maintenance helped me choose the right product. I recommend anyone serious about engine care to consider adding one—you’ll likely see improved performance and engine cleanliness over time.
Author Profile
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Hey, I’m Timothy Bush. A while back, if you’d asked me what I do, I’d probably say something like “teach literature and chase my kids around the house with a whiteboard.” But life has a funny way of reshaping your identity. Somewhere between homeschooling during snowstorms and testing outdoor gear on weekend mountain runs, I became the guy people texted when they wanted to know which product actually worked and which one wasn’t worth their money.
Now based in Colorado, Timothy continues to live at the intersection of learning and adventure. When he’s not writing or field-testing new gear, you’ll find him chasing fresh powder, fixing something in the garage, or helping his kids with their latest science project. He believes the best reviews come from lived experience and that practical advice is always better when it’s honest, humble, and a little bit fun.
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