Engine Degreaser. This product contains strong decontaminant with penetration force and decomposing properties. It can eliminate oils stains, dirt and dust from engine surface to keep them bright and new and facilitate engine to emit heat without damage to rubber and plastic parts or paint surfaces. It also can be used to clean oil stain and dirt on the surfaces of industrial machines and other equipments. USAGE DIRECTION: 1. Start the engine, then shut it down after 5 minutes. 2. Dismount the air filter and cover the vehicle carburetor and distributor block 3. This product must be shaken before spraying it into the engine surface 4.Wash it with clean water after 5 minutes.