75W-90

The 75W‑90 specification belongs to the SAE J300 system and defines the oil viscosity: the number 75W indicates the cold viscosity, providing rapid flow in low‑temperature conditions, and the number 90 indicates the viscosity at 100 °C, guaranteeing load‑carrying capacity and protection under high‑pressure operation. This combination makes the oil ideal for heavy mechanical units – manual gearboxes, differentials, transmission bearings and gear reducers in trucks, off‑road vehicles, agricultural equipment and marine vessels. 75W‑90 oils typically meet GL‑4 or GL‑5 requirements, allowing them to effectively protect gear teeth from wear, corrosion and oxidation, as well as withstand high temperatures and shock loads. In the XENUM catalog you will find two products – X‑TRAN 75W90 GL4/5 and X‑TRAN 75W90 GL5 – which meet these requirements and are suitable for any modern transmission that requires high‑quality synthetic or diester oil.