Engineered for heavy-duty and high-performance 4-stroke engines, including turbocharged, supercharged and racing engines. Formulated using carrefully selected and strenuously tested base stocks and custom additives. Offers thick film strength to protect bearings, and a proven high-temp detergency to minimize deposits, prevent shear, provide thermal stability, and combat fuel dilution to ensure maximum performance from your engine. Ambient temperature operating range: -13 °F / 122 °F (-25 °C / 50 °C). 779234 - 1 QT / 0.946 L | 779235 - 1 US gal. / 3.785 L