Oil Catch Tanks

Oil Catch Tanks: Explained

For car enthusiasts and performance drivers, maintaining the optimal performance of your engine is paramount. One of the key components that can help you achieve this is an oil catch tank. But what exactly is an oil catch tank, and why is it so important? Let's delve into the details.

What is an Oil Catch Tank?

An oil catch tank, also known as an oil catch can or oil separator, is a small container that is installed in the crankcase vent system of a car. Its primary function is to separate oil particles from the engine's exhaust gases before they are re-circulated back into the intake manifold.

Why Do You Need an Oil Catch Tank?

Over time, oil particles can accumulate in the intake manifold, leading to carbon build-up and reducing the engine's performance. By installing an oil catch tank, you can prevent this from happening. Here are some of the key benefits:

  • Improved Engine Performance: By preventing oil from entering the intake manifold, an oil catch tank can help maintain the engine's optimal performance.
  • Reduced Carbon Build-Up: Oil catch tanks help reduce carbon build-up in the engine, which can lead to better fuel efficiency and longer engine life.
  • Enhanced Engine Cleanliness: By capturing oil particles, an oil catch tank helps keep the engine clean, contributing to its overall health and longevity.

Choosing the Right Oil Catch Tank

When it comes to choosing an oil catch tank, there are several factors to consider. These include the tank's capacity, the type of vehicle you have, and the specific needs of your engine. Here are some tips to help you make the right choice:

  • Capacity: The capacity of the oil catch tank should be sufficient to hold the oil particles that are separated from the exhaust gases. A larger capacity tank will require less frequent emptying.
  • Vehicle Compatibility: Ensure that the oil catch tank is compatible with your vehicle. Some tanks are designed for specific makes and models, while others are universal.
  • Quality and Durability: Look for an oil catch tank that is made from high-quality materials and is designed to withstand the harsh conditions of the engine bay.

Installing an Oil Catch Tank

Installing an oil catch tank is a relatively straightforward process that can be done with basic tools. However, if you're not comfortable working on your car, it's always best to have a professional do it. Here are the basic steps:

  1. Locate the PCV valve on your engine and disconnect the hose.
  2. Install the oil catch tank in a suitable location in the engine bay.
  3. Connect the PCV valve to the inlet of the oil catch tank using a new hose.
  4. Connect the outlet of the oil catch tank to the intake manifold using another new hose.
  5. Secure everything in place and check for leaks.


An oil catch tank is a simple yet effective component that can significantly enhance the performance and longevity of your engine. By understanding its function and benefits, you can make an informed decision about whether it's the right addition to your vehicle. Remember, the key to optimal engine performance is regular maintenance and the use of high-quality parts.

At Compare.Parts, we offer a wide range of oil catch tanks from top manufacturers. Whether you're a seasoned car enthusiast or new to car modifications, we're here to help you find the right parts for your vehicle. Explore our selection today and take the first step towards enhanced engine performance.





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