Hot Shot's Secret Two-Step Oil System Treatment from Lubrication Specialties, is safe for gas- and diesel-powered vehicles. This two-step oil system treatment is designed to improve power and compression, reduce lifter and valve noise, reduce engine wear, and increase fuel economy. Step one, Stiction Eliminator, is designed for overall cleaning of the engine’s oil system. Step two, FR3 Friction Reducer, helps support long-term engine performance, restore power, and improve mpg. Combined, the treatment cleans the engine’s oil system, then extends the base oil performance in shear stability, oxidation stability, and film strength.