"Chevron Supreme Motor Oil SAE 10W-40 is a high-quality conventional passenger car motor oil designed to deliver dependable engine protection, cleanliness, and performance at an outstanding value. Formulated with premium base oils and a robust additive system, Supreme 10W-40 helps protect critical engine components from wear while maintaining engine cleanliness under a wide range of driving conditions. It is an ideal choice for consumers seeking reliable everyday protection for older vehicles, high-mileage engines, and applications that require a conventional motor oil. Supreme 10W-40 also provides protection for modern engine technologies by helping prevent Low-Speed Pre-Ignition (LSPI) in turbocharged direct-injection gasoline engines and supporting the performance of catalytic converters and emissions-control systems. The oil’s balanced viscosity characteristics allow it to flow effectively at startup while also maintaining a strong lubricating film at operating temperatures, providing consistent protection across a broad range of driving environments. Suitable for both new and high-mileage cars, as well as turbocharged and naturally aspirated engines. Primarily for older engines that specify legacy API specifications (SN Plus, SN, SL, SJ, SG, SF). Also, for use in lawnmowers, forestry equipment, construction, snow blowers and other four-stroke engines that specify a single oil weight such as (SAE 30 and SAE 40)."