Description DIRECTIONS Allow the car’s engine to run until it reaches normal operating temperature, turn engine off, then pour entire bottle into oil crankcase (treats 3-5L). Start engine and run at fast idle for 15 minutes. Turn engine off and carefully drain oil whilst still hot. Replace oil filter and add appropriate oil that meets vehicle specification. IS IT SAFE TO USE IN MY VEHICLE STP® Engine Flush is suitable for single, multigrade mineral and synthetic oils and designed for petrol and diesel engines.
