7 Best Oil Catch Cans for Diesel Engines

For diesel vehicle owners, maintaining the engine’s health is essential to ensuring optimal performance and longevity. One of the key components that contribute to engine health is the oil catch can. An oil catch can kit is a device that intercepts oil mist and other contaminants before they enter the engine’s intake manifold, preventing carbon buildup, misfires, and other issues that can affect engine performance.

There are several oil catch cans available on the market, each with its own unique features and benefits. The best oil catch cans for diesel vehicles are those that have a high capacity, durable construction, and an efficient filtration system. They should be easy to install and empty, and they should not interfere with the engine’s performance or efficiency.

In this article, we will review the 7 best oil catch cans for diesel vehicles, including their features and benefits. We will also provide a buying guide to help you choose the best oil catch can for your vehicle based on your specific needs and preferences. Whether you are a professional mechanic or a DIY enthusiast, this article will provide you with all the information you need to select the best oil catch can for your diesel vehicle.

What is an Oil Catch Can?

An oil catch can is a simple device that is designed to capture and collect oil and other contaminants that are present in the blow-by gas that is produced by an engine. Blow-by gas is a mixture of air, fuel, and oil that is pushed out of the engine’s crankcase during the combustion process. This gas is then recirculated back into the engine’s intake manifold, where it can cause buildup and other issues over time.

Oil catch cans work by intercepting the blow-by gas before it can enter the engine’s intake manifold. The gas is directed into the catch can, where any oil and other contaminants are separated from the air and collected at the bottom of the can. The clean air is then allowed to flow back into the engine, reducing the amount of buildup and other issues that can occur over time.

Catch cans are particularly useful for engines that use direct injection, as these engines are more prone to buildup and other issues due to the way that they operate. By using an oil catch can, drivers can help extend the life of their engine and improve its overall performance.

Why do Diesel Vehicles Need an Oil Catch Can?

Diesel engines are known for their durability and longevity, but they are also prone to producing blow-by gas, which can cause problems if not properly managed. Blow-by gas is a mixture of air, fuel, and oil that escapes from the combustion chamber and enters the crankcase. This gas contains contaminants that can cause buildup inside the engine, leading to decreased performance and increased wear and tear.

Oil catch cans are designed to prevent this buildup by capturing blow-by gas and separating the oil from the air. They do this by using a series of baffles or filters that trap the oil and allow the air to pass through. The oil is then collected in a separate chamber, where it can be drained periodically.

By installing an oil catch can, diesel vehicle owners can help prevent engine damage and extend the life of their engines. Oil catch cans can also help improve performance by reducing the amount of contaminants that enter the engine, which can lead to increased power and efficiency.

It’s important to note that not all diesel vehicles require oil catch cans. The need for an oil catch can depend on a variety of factors, including the age and condition of the engine as well as the type of driving the vehicle is used for. However, for those who want to ensure the longevity and performance of their diesel engine, an oil catch can is a worthwhile investment.

Oil Catch Cans Diesel vs. Gasoline

Oil catch cans work similarly for both diesel and gasoline engines, but diesel engines produce more soot and carbon buildup, making an oil catch can even more beneficial. Here are some specific benefits:

Reduces Engine Deposits

One of the primary benefits of an oil catch can is that it helps reduce engine deposits. As the engine runs, oil vapor and other byproducts can build up in the engine, leading to deposits and gunk. An oil catch can trap these byproducts, preventing them from building up in the engine.

Improves Engine Performance

By reducing engine deposits, an oil catch can also help improve engine performance. With less gunk and buildup in the engine, the engine can operate more efficiently, resulting in better fuel economy and improved power and acceleration.

Extends Engine Life

Over time, engine deposits can cause wear and tear on the engine, leading to reduced engine life. By reducing these deposits, an oil catch can help extend the life of the engine, saving you money in the long run.

Reduces Emissions

By trapping oil vapor and other byproducts, an oil catch can also help reduce emissions. This is especially important for diesel engines, which are known for producing more soot and carbon buildup than gasoline engines.

Easy to Install

Most oil catch cans are easy to install and can be done in just a few minutes with basic tools. This means you can enjoy the benefits of an oil catch can without spending a lot of time or money on installation.

Factors to Consider When Choosing an Oil Catch Can

When selecting an oil catch can for your diesel vehicle, there are several factors to consider. Here are some of the most important:

Capacity

The capacity of an oil catch can refer to the amount of oil it can hold before needing to be emptied. This is an important factor to consider, as a smaller capacity catch can will need to be emptied more frequently. However, a larger capacity catch may be more difficult to fit into your engine bay. It is important to find a balance between capacity and size that works for your specific vehicle.

Mounting Options

Oil catch cans can be mounted in a variety of ways, including using brackets, bolts, or clamps. It is important to consider which mounting option will work best for your vehicle, as some options may require modifications to your engine bay. Additionally, some catch cans may come with mounting hardware, while others may require you to purchase it separately.

Durability

An oil catch can is exposed to high temperatures and harsh conditions, so it is important to choose one that is durable and can withstand these conditions. Look for catch cans made from high-quality materials, such as aluminum or stainless steel. Additionally, consider the quality of the fittings and hoses used in the catch can, as these can also affect its durability.

Ease of Installation

Installing an oil catch can can be a complex process, so it is important to choose one that is easy to install. Look for catch cans that come with clear instructions and all the necessary hardware. Additionally, consider the location of the catch can and how easy it will be to access for maintenance and cleaning.

By considering these factors, you can choose the best oil catch can for your diesel vehicle that will effectively separate oil and other debris from the circulated air, protecting your engine from damage and improving its performance.

How to Install an Oil Catch Can

Installing an oil catch can is a simple process that can be done in a few easy steps. Here is a general guide on how to install an oil catch can:

1. Locate the PCV valve on your engine. It is usually located on the valve cover or intake manifold.
2. Disconnect the hose that runs from the PCV valve to the intake manifold.
3. Connect one end of a new hose to the PCV valve and the other end to the inlet port of the catch can.
4. Connect another hose to the outlet port of the catch can and the other end to the intake manifold.
5. Mount the catch can in a secure location using the provided brackets.
6. Ensure that all connections are tight and secure.
7. Start the engine and check for any leaks.

It is important to note that the specific installation process may vary depending on the make and model of your vehicle. Always refer to the manufacturer’s instructions for installation.

Additionally, it is recommended to install an oil catch can in a location that is easily accessible for regular maintenance. This will ensure that the catch can is functioning properly and prevent any potential issues.

Best 7 Oil Catch Cans for Diesel Vehicles

Oil catch cans are essential for diesel engines as they prevent oil and contaminants from entering the engine, leading to better performance and longevity. Here are the top 7 best oil catch cans for diesel vehicles:

2) Mishimoto MMBCC Baffled Oil Catch Can

3) Moroso 85481 Air/Oil Separator Catch Can

4) ESPEEDER Oil Catch Can

5) Speedwow Oil Catch Can

6) Vincos Universal Oil Catch Can

7) Evil Energy Universal Oil Catch Can

Conclusion

After thorough research and analysis, it is clear that oil catch cans are essential for diesel vehicles. They help prevent oil buildup in the engine and improve overall performance. The seven oil catch cans reviewed in this article are all excellent choices for diesel vehicle owners.

Ultimately, the best oil catch can for a diesel vehicle will depend on individual needs and preferences. However, any of the seven catch cans reviewed in this article would be a wise investment for any diesel vehicle owner looking to improve engine performance and longevity.

FAQs

Here are some frequently asked questions about oil catch cans for diesel vehicles:

Q: What is an oil catch can?

A: An oil catch can is a device that is installed in the engine bay of a vehicle to capture and store oil that is normally recirculated back into the engine. This oil can cause problems such as carbon buildup and decreased performance.

Q: How does an oil catch work?

A: An oil catch can work by intercepting the oil that is recirculated back into the engine and storing it in a separate container. This prevents the oil from entering the intake system and causing problems such as carbon buildup and decreased performance.

Q: Do I need an oil catch can for my diesel vehicle?

A: It is not necessary to have an oil catch can for your diesel vehicle, but it can help prevent problems such as carbon buildup and decreased performance. If you are experiencing these issues, an oil catch may be a good investment.

Q: How often do I need to empty the oil catch can?

A: The frequency with which you need to empty the oil catch can depends on a number of factors, including the size of the can and the amount of oil your engine produces. It is generally recommended to check the oil catch can every 1,000 miles and empty it as necessary.

Q: Can I install an oil catch can myself?

A: Yes, it is possible to install an oil catch can yourself, but it is recommended to have a professional do it if you are not familiar with engine modifications. Improper installation can lead to problems such as oil leaks and decreased performance.