Bar's Products' Rislone 710 High-Performance Oil Treatment increases oil film thickness, building a thicker oil cushion and increasing oil pressure in worn engines. Rislone 710 helps prevent friction and wear on engine parts, noisy engines and reduced engine power. It also helps keep older and high-mileage vehicles running stronger, longer. Rislone 710 High-Performance Oil Treatment works with all gasoline and diesel engines using conventional, high-mileage and synthetic oil. It can be installed in any car, truck, van or SUV with a 4-, 6-, or 8-cylinder engine.