Injection Stiction occurs when oxidation and carbon build-up form inside (oil-side) the injector. This is related to newer injection technology that runs hotter and causes the oil side of the injector to stick or foul. MotorKote Diesel Stiction Remover removes carbon build-up and provides a coating to eliminate friction in diesel injectors. Pour one treatment of our Stiction Remover into your oil BEFORE replacing your injectors. Recommended to be used in conjunction with MotorKote Hyper Lubricant, your engine will regain its original performance power while reducing friction.