Description
Product Overview
McKee’s 37 Engine Degreaser is a 22 fl oz non‑acid cleaning solution designed for comprehensive engine maintenance. Formulated to be safe on all engine components—including aluminum, steel, plastic, and rubber—it penetrates stubborn grime, carbon buildup, and oil residues without causing corrosion. The product comes in a convenient spray bottle weighing 4.2 ounces, with dimensions of 11 × 4.9 × 2.2 inches, making it easy to handle in tight engine bays. Manufactured by McKee’s 37, the formula meets automotive industry standards and has earned a solid 4.2‑star rating from 29 verified customer reviews.
Usage
Designed for both professional mechanics and DIY car owners, this degreaser excels in a variety of environments—from busy auto shops to home garages. Apply the spray directly onto engine surfaces, let it dwell for a few minutes to break down contaminants, then wipe or rinse away. It is especially effective before routine inspections, after oil changes, or when preparing an engine for rebuilding. 
Why Choose Us
McKee’s 37 stands out due to its non‑acidic composition, which eliminates the risk of damaging sensitive engine parts while delivering aggressive cleaning power. Each batch undergoes rigorous quality testing to ensure consistency and safety. The brand’s reputation for durability and performance is reflected in its ranking as #73 in Automotive Engine Degreasers on Amazon. Customers appreciate the balance of effectiveness, safety, and value, making it a trusted choice for engine care.
Key Features
- Non‑acid formula safe for all engine materials
- 22 fl oz spray bottle for easy application
- Fast‑acting, removes grease, carbon, and oil buildup
- Helps reveal hidden issues for quicker diagnostics
- Highly rated 4.2 stars from verified buyers
FAQ
Is this degreaser safe for aluminum engine parts?
Yes, the non‑acid formulation is specifically designed to be safe on aluminum, as well as steel, plastic, and rubber components.
How long should I let the product sit before wiping?
Allow the spray to penetrate for 3–5 minutes; for heavy buildup, a longer dwell time of up to 10 minutes may be needed.
Can I use it on a hot engine?
For best results, apply the degreaser to a cool or warm engine. Using it on a hot engine may cause rapid evaporation, reducing effectiveness.
Do I need to rinse after cleaning?
Rinsing is recommended for thorough removal of loosened debris, especially before re‑assembly or final inspection.
Is this product environmentally friendly?
While highly effective, the formula is biodegradable and complies with standard automotive waste disposal regulations.






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