MAN 339 Type L1

MAN 339 Type L1 is a MAN technical approval that sets the requirements for automatic transmission fluids (ATF) for MAN passenger, truck and bus diesel engines. The specification provides a certain viscosity, high‑temperature stability, low wear rate and controlled friction, ensuring smooth gear shifts, gear protection and long‑lasting operation of the reduced‑speed system. Oils that meet MAN 339 Type L1 are suitable for transmission units with turbocharging and electronic control, including MAN TGX, TGS, Lion’s City models and other commercial platforms. Although the specification does not cover after‑treatment systems, it guarantees compatibility with the standard filters and valves that are part of MAN automatic gearboxes. When selecting products on xenum.ua, for example the transmission oils XA‑TRAN DX VI or XA‑TRAN UNI, you obtain full compliance with MAN 339 Type L1, providing optimal protection and reliability for your transmission.