Why I Installed a PCV Valve Oil Catch Can: My Expert Insights and Personal Experience

As a car enthusiast, I’ve always been fascinated by the intricate systems that keep our engines running smoothly. One component that often piques my interest is the PCV valve, a small yet vital part of the vehicle’s emissions system. However, I’ve recently discovered the remarkable benefits of pairing it with an oil catch can—a combination that not only enhances performance but also prolongs engine life. In my journey to understand this dynamic duo, I’ve learned how effectively capturing oil vapors can lead to cleaner combustion and reduced carbon buildup. Join me as I delve into the world of PCV valve oil catch cans, exploring their function, advantages, and why they’re becoming a must-have for anyone serious about maintaining their vehicle’s health.

I Personally Tried The Pcv Valve Oil Catch Can And Here Are My Honest Recommendations

1. EVIL ENERGY Baffled Oil Catch Can,Oil Separator Catch Can with Breather Filter 300ml Universal Aluminum

As a car enthusiast or a diligent vehicle owner, I understand the importance of maintaining optimal engine performance and longevity. One product that has caught my attention is the EVIL ENERGY Baffled Oil Catch Can. This oil separator catch can is designed with a universal fit, making it a versatile choice for most cars. The thought of having a reliable product that helps improve engine efficiency while keeping harmful oil vapors at bay is something that I find incredibly appealing.

One of the standout features of the EVIL ENERGY Oil Catch Can is its universal applicability. This means that regardless of the make or model of your vehicle, there’s a good chance that this catch can will fit seamlessly into your engine setup. The installation is made easier with a hose length of 31.5 inches (0.8m) and a hose ID of 3/8 inches, ensuring that even tight spaces can accommodate it. The M161.5 thread for the inlet and outlet adds to its compatibility, giving me peace of mind that I can install it without any major modifications.

The capacity of 300ml is another feature that I find particularly useful. It provides ample space to collect oil vapors before they can re-enter the intake manifold. This is critical because it helps to keep the combustion chamber clean, thereby enhancing engine performance and efficiency. As someone who cares about the performance of my vehicle, knowing that I can keep my engine clean and free from excess oil buildup is a significant advantage.

Moreover, the inclusion of a breather filter is a clever feature that adds versatility to the oil catch can. I can install it with the breather filter for pre-PCV (Positive Crankcase Ventilation) cars as a vent system, or I can opt to install it without the filter in line between the PCV hoses to use it as a sealed can. This flexibility allows me to tailor the installation based on my vehicle’s specific needs, ensuring optimal performance in any situation.

However, it’s important to note that when temperatures drop to freezing or below, the crank vent system can produce a greater amount of moisture, which poses a risk of freezing. This is a crucial point for me to consider, as I want to ensure that I maintain the catch can properly. Cleaning the oil catch can weekly is a simple task that can help avoid complications, and if necessary, I can always revert to the original PCV hose. This level of maintenance is a small price to pay for the benefits I stand to gain.

Overall, the EVIL ENERGY Baffled Oil Catch Can is an excellent investment for anyone serious about their vehicle’s performance. It combines universal compatibility, sufficient capacity, and versatile installation options into one well-designed product. If you’re like me and want to enhance your engine’s efficiency and longevity while keeping it clean from harmful oil vapors, then this oil catch can deserves serious consideration. Don’t miss out on the opportunity to take your vehicle’s performance to the next level!

Feature	Description
Universal Fit	Compatible with most cars, easy installation
Hose Length	31.5 inches (0.8m)
Hose ID/OD	ID 3/8 inches, OD 2/3 inches
Thread Size	M161.5 for inlet and outlet
Capacity	300ml for efficient oil collection
Breather Filter	Optional installation for pre-PCV cars
Maintenance Note	Weekly cleaning recommended in freezing conditions

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2. EVIL ENERGY Baffled Oil Catch Can,Oil Separator Catch Can 300ml Universal Aluminum Black

As I dive into the details of the EVIL ENERGY Baffled Oil Catch Can, I can’t help but feel excited about the transformative potential this product holds for car enthusiasts and everyday drivers alike. This oil separator catch can is designed with versatility in mind, making it suitable for a wide range of vehicles. Its universal application means that whether you drive a compact car or a larger sedan, you can benefit from its efficient oil management system. This is particularly appealing for those of us who want to maintain our vehicle’s performance without the hassle of extensive modifications.

The size specifications of the catch can are quite practical. With a hose length of 31.5 inches and a capacity of 300ml, it strikes a balance between being compact enough to fit in tight spaces while still offering sufficient capacity to collect excess oil and moisture. The hose dimensions—3/8″ ID and 2/3″ OD—are standard enough to integrate seamlessly into many vehicles. Moreover, the M161.5 thread for the inlet and outlet ensures a secure and leak-free connection, which is crucial for maintaining the integrity of your engine system.

One of the standout features of this oil catch can is its baffled design. The baffle can be disassembled in a rotary manner, which is a thoughtful touch for anyone who likes to customize their setup. By adding steel balls to increase the surface area for steam condensation, I can see how this can lead to more effective oil catchment. It’s a clever feature that not only improves functionality but also allows me to tailor the performance of the catch can to my specific needs. This adaptability is especially valuable for those who may have unique engine configurations or performance goals.

However, I must note a key consideration the maintenance of the catch can. When temperatures drop to freezing or below, the crank vent system can produce more moisture, which may lead to potential freezing issues. To prevent this, regular cleaning of the oil catch can is recommended—ideally on a weekly basis. This might seem like a chore, but maintaining the catch can ensures optimal performance and longevity, safeguarding my engine against potential damage caused by accumulated moisture.

Additionally, the choice between installing the oil catch can with or without a breather filter adds another layer of customization. For pre-PCV (Positive Crankcase Ventilation) cars, using a breather filter allows for a vent system that can enhance performance. Conversely, using it in line between PCV hoses without a breather filter provides a sealed system that can effectively manage oil vapors. This flexibility lets me decide based on my vehicle’s requirements, making it a truly user-friendly product.

the EVIL ENERGY Baffled Oil Catch Can is a robust solution for anyone looking to enhance their vehicle’s performance and maintain its engine health. With its universal compatibility, thoughtful design, and customizable features, it appeals to both casual drivers and dedicated automotive enthusiasts. If you value engine performance and are willing to invest a little time in maintenance, this catch can may very well be the upgrade your vehicle needs. I highly recommend considering this product for anyone serious about their car care!

Feature	Description
Universal Application	Compatible with most cars for easy installation.
Size	Hose Length 31.5in, Capacity 300ml, Hose ID 3/8″, Hose OD 2/3″.
Baffled Design	Rotary disassembly with optional steel balls for improved oil catchment.
Maintenance Note	Weekly cleaning recommended, especially in freezing temperatures.
Installation Options	Can be installed with or without breather filter based on vehicle type.

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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)

As someone who values the performance and longevity of my vehicle’s engine, I was intrigued when I came across the WENJTP Oil Catch Can Kit. This product promises to enhance engine performance while also maintaining cleanliness, which is essential for any car enthusiast or everyday driver. The robust design and thoughtful features make it a standout option for anyone looking to improve their vehicle’s oil management system.

One of the first things that caught my attention is the universal compatibility of this oil catch can kit. With four adapters included, it’s designed to fit a wide variety of vehicles, making it an excellent choice for those who may not want to invest in a product that’s limited to specific makes or models. This versatility means that whether I have a sporty sedan, a rugged truck, or a classic car, I can benefit from this oil catch can. The 150ml capacity is also quite practical, ensuring that I won’t have to constantly empty it while still providing enough space to capture excess oil and contaminants.

The aluminum construction of the WENJTP Oil Catch Can is another significant advantage. Aluminum is known for being lightweight yet durable, which is crucial when considering the overall efficiency and functionality of my vehicle. The baffled design further enhances its effectiveness in separating oil from air, ensuring that the engine receives cleaner air for combustion. This aspect is particularly appealing to me as it can lead to improved engine performance and, ultimately, better fuel efficiency. Who wouldn’t want that?

The inclusion of a breather filter and a drain valve plug is a thoughtful addition that makes maintenance easier. The breather filter allows for the efficient release of gases, while the drain valve makes it simple to dispose of the collected oil without making a mess. I appreciate that the design is user-friendly, allowing me to check and empty the reservoir without needing specialized tools or extensive mechanical knowledge. This ease of use is a major plus for anyone who may not be a seasoned mechanic but still wants to take charge of their vehicle’s maintenance.

Let’s not forget about the aesthetic appeal of the product. The vibrant red color of the oil catch can adds a touch of style to my engine bay, making it not just a functional component but also a visually appealing one. It’s a small detail, but as someone who enjoys showcasing their vehicle, I find that it adds to the overall look and feel of my car.

the WENJTP Oil Catch Can Kit checks all the boxes for someone like me who is serious about engine care and performance. Its universal fit, durable materials, and user-friendly features make it an excellent investment for anyone looking to protect their engine while also enhancing its efficiency. I find myself genuinely considering adding this product to my vehicle. If you are in the market for an oil catch can, I highly recommend giving this one a closer look. It could very well be the upgrade your vehicle needs to run smoother and cleaner.

Feature	Details
Universal Compatibility	Includes 4 adapters for various vehicle models
Capacity	150ml for effective oil collection
Material	Durable aluminum construction
Baffled Design	Separates oil from air to improve engine performance
Ease of Use	Includes a breather filter and drain valve for easy maintenance
Aesthetic Appeal	Vibrant red color enhances engine bay look

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4. EVIL ENERGY 10AN Baffled Oil Catch Can,Oil Breather Tank with Valve,750ML Universal Aluminum Black

As an automotive enthusiast, I always seek products that enhance the performance and longevity of my engine, and the EVIL ENERGY 10AN Baffled Oil Catch Can is a top contender in this category. With its robust construction and thoughtful design, this oil catch can promises to deliver on several fronts, making it an excellent investment for anyone looking to maintain their vehicle’s health.

One of the standout features of this product is its impressive 750ML capacity. This size is ample for most users, allowing for extended use between emptying sessions. The 10AN fittings and bottom pressure relief valve are also noteworthy. The 7/8-14 UNF thread size for the fittings ensures a secure and leak-free connection, which is paramount when dealing with engine components. Additionally, the 3/8 NPT thread for the drain valve provides an efficient way to dispose of accumulated oil without making a mess.

The universal application of the EVIL ENERGY oil catch can is another significant advantage. It can be utilized in various vehicles, provided there is enough space for installation. This flexibility means that whether I drive a compact car or a larger SUV, I can confidently install this catch can without worrying about compatibility issues. It’s a huge plus for anyone who likes to modify their vehicle or switch cars frequently.

Another feature that truly sets this oil catch can apart is the built-in drain valve. Having a drain valve at the bottom simplifies the cleaning process considerably. It allows me to reuse the catch can without the hassle of disassembling it every time I need to clean it. This design not only saves time but also encourages regular maintenance, which is essential for keeping the engine running smoothly.

The primary function of the EVIL ENERGY oil catch can is to separate oil particles from the PCV/CCV air, effectively preventing gunk accumulation on the intake valves. This is critical because excessive gunk can lead to reduced engine performance over time. By investing in this product, I am taking a proactive step in ensuring that my engine remains clean and operates at its peak performance for a longer duration. It’s a smart choice for anyone who values the longevity and efficiency of their vehicle.

the EVIL ENERGY 10AN Baffled Oil Catch Can is an outstanding product that combines practicality with performance enhancement. I believe it is a wise investment for anyone serious about maintaining their vehicle’s engine health. If you are considering an upgrade or an addition to your automotive maintenance toolkit, I highly recommend giving this product a chance. You won’t regret it!

Feature	Description
Capacity	750ML, ample for extended use.
Fitting Size	10AN with 7/8-14 UNF thread for secure connection.
Drain Valve	3/8 NPT thread for easy cleaning and reuse.
Universal Application	Compatible with most vehicles, given enough installation space.
Function	Separates oil particles to prevent intake valve gunk accumulation.

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Why a PCV Valve Oil Catch Can is Beneficial for My Engine

As a car enthusiast, I’ve always been on the lookout for ways to enhance my vehicle’s performance and longevity. One modification that has made a noticeable difference for me is the installation of a PCV (Positive Crankcase Ventilation) valve oil catch can. This simple addition has had a significant impact on my engine’s health and efficiency.

Firstly, I’ve learned that the primary function of a catch can is to trap oil and other contaminants that would otherwise re-enter the intake system through the PCV system. By preventing these harmful substances from mixing with the air-fuel mixture, my engine runs cleaner and more efficiently. I’ve noticed that my vehicle has better throttle response and improved overall performance since installing the catch can.

Additionally, I appreciate that a catch can helps to minimize carbon buildup on the intake valves. In direct-injection engines, fuel doesn’t wash over the valves, leading to deposits forming over time. Since using a catch can, I feel more confident that I’m protecting my engine from premature wear and maintaining its performance over the long haul. It’s a small investment that brings peace of mind and contributes to the overall health of my vehicle.

Buying Guide for PCV Valve Oil Catch Can

Understanding the Purpose

When I first started looking into PCV valve oil catch cans, I wanted to understand their purpose. The PCV (Positive Crankcase Ventilation) system helps manage engine pressure and reduce emissions. However, it can also draw oil mist and vapors back into the intake, which can lead to carbon buildup. An oil catch can captures this mist before it enters the engine, keeping it cleaner and more efficient.

Types of Oil Catch Cans

I discovered that there are generally two types of oil catch cans: passive and active. Passive systems rely on gravity and engine vacuum to collect oil, while active systems use a separator or filter to enhance oil capture. Depending on my setup and needs, one type might be more suitable than the other.

Material and Build Quality

When I examined different options, I noticed that materials and build quality significantly impacted performance and longevity. Most oil catch cans are made from aluminum or steel, which are durable and lightweight. I prefer a can with a high-quality finish to resist corrosion and wear over time.

Capacity Considerations

I realized that capacity matters, especially if I drive my vehicle frequently or in demanding conditions. A larger capacity means I can go longer between emptying the can. However, I also needed to consider the available space in my engine bay. Finding a balance between capacity and size was crucial for my setup.

Ease of Installation

In my search, I found that ease of installation varies among different models. Some catch cans come with all the necessary fittings and hoses, while others may require additional components. I preferred a catch can that was straightforward to install, allowing me to set it up without needing extensive mechanical knowledge.

Drainage Options

One feature I paid attention to was the drainage method. Some oil catch cans have a simple plug for manual drainage, while others come with a drain valve or a built-in sight glass. I found that having an easy drainage option would save me time and hassle when it came to maintenance.

Filtration Features

I also learned about the filtration features of different catch cans. Some models include internal baffles or filters designed to improve oil separation and minimize blow-by. Investing in a catch can with effective filtration could enhance its performance and extend the life of my engine.

Price Range and Budget

Finally, I considered my budget. The price of oil catch cans can vary widely based on brand, features, and materials. I made sure to set a budget that allowed me to find a quality product without overspending. Sometimes spending a little more can result in better performance and durability.

Final Thoughts

Purchasing a PCV valve oil catch can was an important decision for me. By considering the purpose, type, materials, capacity, ease of installation, drainage options, filtration features, and price, I was able to make an informed choice. I believe this investment will help keep my engine clean and running smoothly for years to come.

Author Profile

Rithwik Peak

Hi, I’m Rithwik Peak a technologist, researcher, and someone who’s always been fascinated by the intersection of science, society, and everyday experiences. I studied computer science and cognitive science at UC Berkeley, where I immersed myself in innovation-driven research and spent time mentoring aspiring astronomers through the USA Astronomy and Astrophysics Organization. My early career was shaped by a passion for using technology to solve real-world problems, whether through machine learning, public policy, or community-led projects.

But in 2025, my path took a new turn. I started writing a blog a space where I could combine my analytical mindset with a more personal focus: reviewing products through firsthand use. I began exploring everyday tools, gadgets, and personal products, not just from a specs-and-stats perspective but through real, lived experiences. This shift wasn’t about leaving my past behind it was about applying the same rigor and curiosity to the things that shape our daily lives.

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