Hot Shot's Secret FR3 Friction Reducer 64 Fluid Ounce 2 Quarts, Light Yellow Liquid, (HSSFR364Z)

100% synthetic oil additive that protects engines and improves performance Compatible with vehicle type: All vehicles and equipment. Topically that is 8 ounces for cars, 23 ounces for trucks, and 64 ounces for semi trucks. FR3 displaces the same amount of oil. Do not use it in combination with stiction eliminator and other aftermarket oil additives.