Hot Shot's Secret® FR3 Friction Reducer® is a 100% synthetic engine additive boosting the host oil's lubricating and wear-reducing properties. Contains three patented synthetic lubricants with superior properties compared to traditional synthetics. Its carbon nano particle anti-wear formula fills microscopic surface irregularities, creating a smoother surface for better lubrication. This synergy enhances base oil performance, improving shear and oxidation stability, film strength, and notably, reducing friction. For all diesel and gas engines, compatible with synthetic or conventional oils, you can add it to various systems like hydraulics, power steering, engine oil or differentials. For autos, heavy-duty equipment, trucks, and even two-cycle engines. Mix with fuel after adding to two-cycle oil, using about 1.5 oz per quart of oil during a fresh oil change and throughout the oil change interval. Safe for engine oil, power steering, hydraulics, and differentials.