Engine Cleaner Spray on Engine Cleaner and agitate the area with a detail brush to remove grease, oil, dirt, and grime. Loosens and breaks up grease, grime, and engine gunk Easy spray-on, agitate, and wipe clean application Cleans engine parts and readies your powerplant for dressing You make your engine scream, we'll make it gleam. Opening your hood should be like opening a jewelry box and revealing an eye-catching gem. Engine Cleaner loosens and breaks up grease, grime, and engine gunk so your powerplant makes a good impression. For really filthy neglected engines try pairing with our Citrus Multi-Surface Cleaner.