Penray’s 7612 Crankcase and Differential Cleaner includes a combination of solvents formulated to dissolve sludge and other deposits and collect moisture so that contaminants can be drained during oil changes before causing damage. Suitable for use with diesel and gasoline engines, the blend also removes harmful deposits from valvetrain components, pistons and piston rings to help promote performance and longevity. It is designed to be compatible with all conventional and synthetic oils and lubricants, as well as gaskets, seals and bearings.
