32oz. MK Upper Cyl Lubricant

MotorKote Upper Cylinder Lubricant and Fuel Injector Cleaner is precision formulated to clean fuel injectors and help prevent deposits in gas or diesel engines. A cleaner running engine improves fuel mileage and returns lost horsepower and torque. Highly effective cleaning agents remove valve stem gum, and carbon build up the cause of pre-ignition, hesitation, pinging and dieseling. It is environmentally safe and won't harm catalytic converters or oxygen sensors.