FIAT 9.55550-AV4

The FIAT 9.55550‑AV4 specification defines the requirements for transmission oil for automatic gearboxes developed by the Italian group Stellantis. The oil must have a stable viscosity in the 5‑7 W range, high oxidation resistance, gear wear protection, and meet friction characteristic requirements that ensure smooth gear shifts and minimal noise level. This standard applies to automatic transmissions of the Fiat 500, Panda, Tipo, 500 X models, as well as to some light commercial vehicles Fiat Doblò and Ducato with turbo‑diesel engines. Since this is transmission oil, it does not affect the operation of the exhaust after‑treatment system (DPF, catalyst) and contains no SAPS restrictions. When selecting lubricant on xenum.ua, look for products marked FIAT 9.55550‑AV4, for example XENUM XA‑TRAN UNI transmission oil, which guarantees compliance with OEM requirements and long‑lasting gearbox life.