GUNK Heavy Duty GEL Engine Degreaser

SKU: EBGELC Category:


Clings to surfaces – including older, hotter-running engines – for a deep penetrating clean that easily rinses with no scrubbing

  • No scrubbing necessary
  • Safe on plastics, rubber, and under-hood paint
  • Our most aggressive engine degreaser formula
  • Clings to eliminate baked on grease
  • Deep penetrating action
  • Rinses clean with water

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GUNK Engine Degreaser Heavy Duty Gel

Clean engines run cooler, look better and last longer

Whether you’re about to work under the hood, prep your ride for resell or are just overdue for a custom detail, deal muck and grime it’s final blow with GUNK’s Engine Degreaser Heavy Duty Gel. It’s Gel action quickly clings to engine components to remove grease and grime. Specifically designed for older or hotter running engines, Engine Degreaser Heavy Duty Gel is safe on plastics, under-hood rubber and paint. GUNK, makers of the toughest cleaners on the planet for over 55 years, is one of the #1 brands in engine degreasing.

Spray on, hose off, that’s it

Save the elbow grease for other jobs. Just spray GUNK Engine Degreaser Heavy Duty Gel on your engine, wait 10-15 minutes, hose it down and you’re done. For baked on grease, give it a quick scrub-a-dub-dub with a brush before hosing off.

Works on multiple vehicle types

Use GUNK’s Engine Degreaser Heavy Duty Gel on cars, trucks, power mowers, marine, RV’s, ATV’s, bikes, farm equipment, tractors, and more!

Designed for hotter running, older engines

Designed to remove very heavy baked on oil and grease.

Powerful Clinging Gel

Gel clings to eliminate baked on grease with deep penetrating action. Engine Degreaser Heavy Duty Gel to soak for 10-15 minutes.

Rinse it Clean

Hose off the engine degreaser while taking care around any sensitive components. When washed clean, start your engine and let idle for 15 minutes to assure complete drying.

Apply GUNK Engine Shine (CEB1)

Protect your engine from future dirt & grease build up, while leaving an attractive shine with our GUNK Engine Protector & Shine product.


Download SDS

Prop 65 Warning


This product can expose you to chemicals including naphthalene, which is known to the State of California to cause cancer. For more information go to


Worked better than i expected

Used on my 1967 triumph tr4a engine. I really didn't think it would work without intense scrubbing but I followed the directions and it did an amazing job. The block is clean - even in some hard to reach crevices. It needs another application to be perfect and probably some light help from a brush on the really tough spots but well worth the investment. And the part in the directions where it mentions discoloring black-top driveways is painfully accurate.

Works Great of Oil/Grease

The radiator on my diesel motorhome was heavily plugged with a caked on oil/dirt combination which was causing cooling issues. I purchased several cans of this to help clean the radiator. I followed the directions and allowed the degreaser to soak on the radiator for about 20 minutes then hosed it down with water. Repeated the process a few times and now it looks like new.

Get a few cans if you want a clean engine bay!

Works wonder on my 280Z engine bay. One might not be enough, so make sure you grab a few! Also, it's better to use any type of scrub to help the gel penetrate any baked/aged goo.