PROTECTS ENGINES: This advanced 100% synthetic oil additive is designed to enhance gas & diesel engine protection and optimize performance. Formulated to reduce friction and wear, it ensures smoother operation and extends engine life. IMPROVES FUEL ECONOMY: The FR3 Friction Reducer is an advanced oil additive designed to enhance engine performance by reducing friction, resulting in an increase in horsepower and fuel economy by up to 5 percent. GAS & DIESEL: This versatile product is designed for use in both diesel & gas engines, ensuring compatibility with a wide range of vehicles. It effectively functions with both synthetic & conventional oil, providing optimal performance and protection. REDUCES NOISE: Diminishes lifter & valve noise while effectively restoring lost compression in your engine. This additive ensures optimal functionality & a quieter driving experience, making it essential to your vehicle maintenance routine. EASY TO USE: Use 1.5 ounces per quart of oil. FR3 displaces the same amount of oil. Do not use it in combination with Stiction Eliminator and other aftermarket oil additives. Use Stiction Eliminator to deep clean the engine and protect it with FR3.