Safe Engine Bay Cleaning: How to Degrease & Protect Your Car Engine

A clean engine isn’t just for show, it’s a sign of a well-maintained machine that runs cooler and lasts longer, giving you total peace of mind under the hood.

To turn your engine bay into a point of pride, you’ll need WD-40 Specialist® Machine & Engine Degreaser and some protective rags. Removing baked-on oil and road grime reveals a “like-new” finish that makes maintenance easier and helps your car retain its value.

Things you will need

Step 1

Clear Dirt & Debris

Wipe away dust and dirt build-up from car rims, bonnet, and engine bay for a clean start.

Step 2

Prep Engine Bay

Disconnect battery terminals and cover exposed wiring to prevent water damage before cleaning.

Step 3

Secure Loose Wires

Wrap plastic around spark plugs, distributor caps, and loose wires for extra safety.

Step 4

Apply Engine Degreaser

Spray WD-40 Specialist® Engine Degreaser onto engine components and greasy surfaces throughout the engine bay.

Step 5

Let Formula Soak

Allow the degreaser to sit for 3 to 5 minutes to break down tough grime.

Step 6

Scrub & Rinse Engine

Scrub heavily soiled areas with a brush, then rinse thoroughly with water according to product instructions.

Step 7

Finish Engine Detail

Wipe away any remaining moisture and allow the engine bay to dry before returning the vehicle to service.

CAR

Turn Your Car into A Chick Magnet.