Permatex Engine Cleaners & Degreasers

Permatex Engine Cleaners & Degreasers: Chemical Expertise You Can Trust

When it comes to chemical solutions for the automotive world, few names carry the weight of Permatex. Since 1909, Permatex has been an acknowledged leader in the development of innovative new products and services for the automotive aftermarket. That century-plus of chemistry know-how doesn't just apply to sealants and gasket makers — it extends directly into their engine cleaners and degreasers, where formulation precision matters just as much.

Why Permatex Stands Out in Engine Cleaning

Engine bays are among the most demanding cleaning environments imaginable — baked-on grease, motor oil residue, road grime, and hydraulic fluid can accumulate over years of service. Permatex approaches this challenge the same way it approaches every chemical problem: with purpose-built formulations designed for professional results. Permatex markets a wide range of products under well-known ITW brand names, including Grez-Off, a heavy-duty degreaser built for exactly these conditions. Grez-Off is engineered to penetrate and dissolve heavy grease and oil deposits from engines and engine compartments, making it a go-to for professional technicians and serious DIYers alike.

With over 350 products and approximately 1,200 SKUs, Permatex provides market-specific formulations and application methods for a variety of industries, including automotive, marine, heavy duty, and off highway. This breadth of expertise means that even a focused product like an engine degreaser benefits from decades of cross-industry chemistry refinement — not just a generic formula pulled off a shelf.

Built for Professionals and DIYers

The Permatex brand has become synonymous with the word "trusted," with a legacy spanning racetracks to everyday automotive maintenance and repair — made for the Professional™ and Do-It-Yourselfers alike. Whether you're a shop technician degreasing an engine before diagnosis or a home mechanic doing a thorough cleanup before a reseal job, Permatex engine degreasers are formulated with the same rigorous standards that have made the brand a staple in garages worldwide.

The company is constantly working with automakers, parts suppliers, service parts groups, and other aftermarket companies to develop the next generation of service technology. This collaborative approach to product development ensures that Permatex cleaners and degreasers keep pace with modern engine materials, coatings, and environmental requirements — an important consideration as engine bay components grow increasingly complex.

A Legacy of Chemical Innovation

Established in 1909, Permatex has built a strong reputation for innovation and quality, providing a comprehensive range of solutions including sealants, adhesives, lubricants, cleaners, and hand care products. That full-spectrum chemical expertise is the backbone of their engine cleaner and degreaser lineup — products that share DNA with some of the most trusted automotive chemicals ever made. Explore the full Permatex brand catalog or browse the complete range of engine cleaners and degreasers to find the right formula for your next project.