Gunk Engine Degreaser Spray 15 oz (Case of 12) – Original Formula, Fast-Acting Oil & Grease Remover

GUNK Original Engine Degreaser is a heavy-duty spray that dissolves baked-on oil and grease from engines and equipment, rinsing away easily with water for a cleaner engine bay without scrubbing.

Designed for mechanics and DIYers, this 15 oz aerosol delivers a concentrated, deep-penetrating formula developed over decades to tackle the toughest, greasiest engines. It works on a wide range of vehicles and power equipment, loosening years of accumulated oil, grime, and residues so you can rinse them away. The case pack of 12 keeps a shop stocked or supplies a small fleet for repeated cleaning jobs.

How quickly does GUNK clear heavy oil and baked-on grease?

The spray is formulated to penetrate dense deposits and begin breaking them down within minutes. After application, allow 10–15 minutes for the chemistry to dissolve build-up, then rinse with water to remove loosened grime. For stubborn areas, a second application can accelerate the process.

• Actively breaks down old, baked-on oil and grease without manual scraping
• Visible loosening in 10–15 minutes for rinse-off cleaning
• Repeat applications safe for persistent deposits

Will this product work on my different vehicles and tools?

Yes—GUNK Original Engine Degreaser is formulated for versatility across many machines. It’s suitable for cars, trucks, motorcycles, RVs, ATVs, lawn mowers, tractors, and farm equipment. Use it wherever oil and grease accumulate around engines, drivetrains, and metal components.

• Safe for a wide range of automotive and small-engine applications
• Effective on shop and agricultural equipment with heavy soil
• One formula to cover multiple vehicles and maintenance tasks

How do I apply and rinse GUNK for the best results?

Apply liberally to a cool engine or component surface, saturating greasy areas. Let the product dwell for 10–15 minutes to dissolve residues, then rinse thoroughly with a hose. No heavy scrubbing is required—just allow the formula to do the work.

• Spray-on application; target greasy build-up and seams
• Allow 10–15 minutes dwell time before rinsing
• Hose off completely to remove loosened oil and cleaner residue

Who is this for? GUNK Original Engine Degreaser is intended for professional mechanics, restoration enthusiasts, fleet managers, and homeowners who maintain lawn and ride-on equipment. It’s especially useful for anyone dealing with old or leaky engines that have accumulated stubborn deposits. The convenient 15 oz aerosol and case pack keep workshops stocked and make cleanup efficient, letting you restore engine bays and equipment quickly without prolonged labor.

Note: Follow label instructions for use, avoid application to hot surfaces, and protect sensitive electrical components during cleaning. This product is a powerful degreaser—not a paint or gasket restorer—so assess surfaces before use for compatibility.