JASO ATF M-V

JASO ATF M‑V is a specification of the Japanese Automotive Association that defines the requirements for automatic transmission fluids, including viscosity, viscosity index, high‑temperature stability, friction coefficients, wear and oxidation protection. The specification is targeted at CVT systems and other automatic gearboxes used in motorcycles, scooters and some passenger cars with Japanese engines, providing smooth gear shifts and long‑lasting operation under load. Fluid that meets JASO ATF M‑V has low viscosity on cold start (≈ 2,5 cSt 40 °C) and stable viscosity at 100 °C, which allows maintaining optimal system pressure and preventing overheating. It also offers high resistance to oxidation and corrosion protection, which is important for the durability of bearings and gears. In the XENUM catalog you will find, for example, the transmission oil XA‑TRAN NIPPON ATF, which fully complies with this requirement, guaranteeing compatibility with all engines that require JASO ATF M‑V.