Top rated automotive engine degreasers

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AI-generated summary · updated August 23, 2026 · verify details before purchase.

1. 

   1 Best overall Gunk

   Gunk Original Engine Degreaser

   ★★★★☆4.5/5 $60.26

   Powerful foam cleans grease and grime without harsh odors; safe on most engine components.

   • Effective foam
   • Pleasant scent
   • Safe on hoses

   • May require scrubbing on heavy buildup

   View on Amazon manufacturer site
2. 

   2 Best value Chemical Guys

   Chemical Guys Signature Series Orange Degreaser

   ★★★★★4.6/5 $11.99

   Versatile concentrate dilutes for various cleaning levels; citrus-scented and biodegradable.

   • Adjustable strength
   • Citrus scent
   • Biodegradable

   • Requires dilution

   View on Amazon manufacturer site
3. 

   3 Professional grade Meguiar's

   Meguiar's Super Degreaser D10801

   ★★★★☆4.5/5 $29.53

   High-concentrate formula cuts tough grease and grime; safe for clear coat and painted surfaces.

   • Strong concentrate
   • Safe on paint
   • Versatile

   • Strong smell

   View on Amazon manufacturer site
4. 

   4 Best aerosol CRC

   CRC Heavy Duty Engine Degreaser

   ★★★★☆4.4/5 $84.99 Only 2 left

   Fast-acting spray penetrates and emulsifies grease; rinsed off with water.

   • Aerosol ease
   • Fast acting
   • No residue

   • Small can size

   View on Amazon manufacturer site
5. 

   5 Best foam Gunk

   Gunk Foamy Engine Brite Degreaser

   ★★★★☆4.4/5 $16.82

   Thick foam clings to vertical surfaces for deep cleaning; citrus scent.

   • Cling foam
   • Citrus scent
   • Easy rinse

   • Not as strong on heavy oil

   View on Amazon manufacturer site
6. 

   6 Eco-friendly Simple Green

   Simple Green Pro HD Heavy-Duty Cleaner

   ★★★★★4.6/5 $26.25

   Non-toxic, biodegradable concentrate safe for engines and the environment.

   • Non-toxic
   • Biodegradable
   • Multiple uses

   • Needs dilution
   • May require more effort

   View on Amazon manufacturer site
7. 

   7 Heavy duty 3M

   3M Citrus Base Cleaner

   ★★★★☆4.5/5 $12.99

   Industrial strength cleaner with natural citrus solvent for tough grease and oil.

   • Powerful cleaning
   • Citrus solvent
   • Concentrated

   • Strong smell
   • Can be harsh on skin

   View on Amazon manufacturer site

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