Slick 50, inventors of the engine treatment introduce Slick 50 Recharged High Mileage Engine Treatment. Slick 50's Recharged technology was developed for vehicles that suffer from lost performance due to friction and wear, oil consumption and leaks, smoking and sludge build up. It is formulated to restore the performance of your high mileage vehicle and keep it running like new.Slick 50's propriety formulation is built from a base of fully formulated 10W-30 motor oil that meets ILSAC GF5 motor oil specifications and enhanced with additives specifically for high mileage engines. Unlike some oil additives Slick 50 will not dilute the additives already in your motor oil.