Gear Oils

Gumout performance additives are scientifically formulated to clean, protect and enhance key engine and automotive parts. Proven to perform on the latest engine technology, like direct injectors and superchargers, Gumout products are equally effective on older technology, like carburetors.

CRC continues to lead the market in creating revolutionary products to improve performance and driving experiences. CRC Mass Air Flow Cleaner was the first item on the market specifically designed to clean the mass air flow (MAF) sensor in your car, which can increase horsepower, enhance fuel efficiency, and improve engine performance. Safe on all car parts and plastic, it dries instantly, removes buildup and debris, and leaves behind no residue or chemical buildup.