GM 12346140

GM 12346140 is a specification for Dexron VI automatic transmission fluid developed by General Motors to ensure stable operation of modern 6‑, 7‑ and 8‑speed automatic gearboxes in passenger and commercial models. Technically it requires high viscosity stability across various temperatures, excellent protection against wear, oxidation and deposit formation, as well as effective cooling and lubrication of hydraulic components. The specification is targeted at gasoline and diesel GM engines that use automatic transmissions without requirements for SAPS additives, thus it is compatible with DPF systems and catalytic converters without adverse effects. Oils that meet GM 12346140 are suitable for replacing older Dexron III/IV, providing smooth gear shifts and a longer service interval. When selecting a product on xenum.ua, use the “GM” filter to find, for example, the XENUM XT‑PRO 75W140 transmission oil, which fully complies with this approval.