CRC Aeroclean Degreaser delivers a concentrated jet of cleaning solution that dissolves and removes oil and grease from dirty engines. It leaves a detergent on the surface which emulsifies the remaining contaminants when flushed with water. CRC AeroClean Degreaser restores and improves the appearance of your engine. It is a unique combination of non-corrosive surfactants, detergents and solvents, so it can also be used safely to clean concrete floors and driveways. It is excellent on all automotive engines and mechanical equipment that is contaminated with grease, oil and grime.