How To Use An Engine Degreaser

An engine degreaser is a highly versatile formula that can be used to remove stubborn dirt, grease, grime and oil. Whether you need to clean your engine or other components of your car, we show you exactly how to use a degreaser below.

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How To Use Engine Degreaser
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An engine degreaser can be used to clean a wide variety of car components where grease and grime are present. Whether you are a detailing enthusiast that wants to keep their engine bay spotless or you’ve had an oil leak in the engine, an engine degreaser is the best product for the job. Some of the best-rated engine degreasers are available in a range of forms and make cleaning oily or greasy surfaces a walk in the park.

In our guide to explain how to use engine degreasers, we are using a heavily oiled undertray from a car that has been leaking oil for months. It’s a great example to show as it displays the effectiveness of a degreaser.

What You’ll Need

  • Engine degreaser
  • Paper towels
  • Paintbrush or toothbrush
  • Hose pipe and access to water

How To Use An Engine Degreaser

1. Rinse Away Any Loose Debris

Before using the degreaser, it’s good practice to rinse away any loose dirt that’s clinging to the oil and grease.

2. Pour Engine Degreaser Onto The Surface

Evenly pour the degreaser onto the surface and ensure each area is covered and ready for the next stage.

3. Agitate The Formula

Using a paintbrush (or similar), agitate the degreaser into the oiled or greasy areas. You should feel the dirt break up, which is a clear sign that it’s working its magic.

Using A Degreaser

4. Rinse Away The Dirt & Degreaser

Using a hose pipe, rinse away the dirt and grease that has been lifted from the surface. You may need to put your hose on a powerful setting to clear all of the dirt.

5. Repeat For Further Degreasing

Depending on how bad the surface is, you may wish to repeat steps 2, 3 and 4 again for even better results.

6. Dry The Cleaned Area

After you have successfully degreased the area, you should use paper towels to completely dry the area and clean where the water didn’t reach all of the residues. To speed up the drying process, you may also wish to place the part in the sun. As you can see in the below photo, the result of using a degreaser is very clear.

Result of Using a Degreaser


Although you may be able to use a car shampoo to remove the most stubborn areas of dirt, a degreaser is the only way to remove heavily oiled surfaces. They are available in a wide range of formulas but depending upon the amount of degreasing you attend on doing will determine the most suitable formula to use.

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