API RC

API RC designation is a specification of the American Petroleum Institute that sets minimum requirements for wear protection, oxidation stability, deposit control, and anti‑foam capability of motor oils intended for medium‑ and high‑output gasoline engines, including turbocharged ones, produced in the 1970s and 1980s. Oil that meets API RC must have a sufficient viscosity index, provide protection under elevated temperature loads, and maintain stability when operating across a wide RPM range. The specification does not impose special requirements on after‑treatment systems (SAPS, DPF, catalysts), so it is suitable for traditional gasoline power units without modern emission‑control technologies. When selecting a product on xenum.ua that carries the API RC mark, you receive a lubricant compatible with classic engines, delivering durability and proper performance without risking damage to old seals. If compatibility with newer requirements is needed, consider oils with higher designations, such as API SF or API SG, which remain backward compatible with engines that meet RC.