The Hy-per Lube High Mileage Treatment Engine Supplement from Rislone is an additive blend designed to work with all motor oils, including conventional, high-mileage, and synthetic, the company said. The supplement is also good for use in manual transmissions, differentials, and axles, and can be added to engine oils either during or between oil changes. The additive stabilizes engine oil while also leaving a protective film that will not run off on internal parts, and helps reduce friction and boost oil pressure to reduce lifter and valve ticking, knocks, and other noises.
