JASO ATF FZ

JASO ATF FZ is a Japanese transmission fluid standard that sets requirements for viscosity, high‑temperature stability, resistance to oxidation and deposit formation, as well as friction parameters needed for smooth shifting in automatic gearboxes, CVTs and dual‑clutch transmissions. The specification calls for a minimum viscosity of 0.9 cSt at 100 °C, high thermal stability (TBN ≥ 2 mg KOH/g) and gear‑wear control, ensuring long‑lasting operation without overheating. Fluids that meet JASO ATF FZ are recommended for Japanese automatic transmissions (Nissan, Subaru, Mazda) and some European DCTs where the manufacturer requires this level of friction characteristics. Because the standard does not include SAPS requirements, it is compatible with catalysts and DPF systems, provided other specifications do not conflict. On xenum.ua the JASO ATF FZ label helps quickly find the appropriate transmission oil, such as XENUM XA‑TRAN DX VI, which provides optimal performance for your gearbox.