DEXRON
GM 1940182
GM 1940707 Automatic Transmission Fluid
GM 1940757 Automatic Transmission Fluid
GM 1940767 Automatic Transmission Fluid
GM 1940768
GM 1940776
GM 9986195
M32 Gearbox Oil Recommendation
Gear oil and automatic transmission fluids meeting the various GM gear oil and ATF specifications are listed below under their respective standard numbers. DEXRON® is GM's main ATF standard; oil manufacturers buy a licence to produce oil to the DEXRON®- specification from GM. DEXRON®-VI is the current and only official standard; earlier DEXRON® standards are no longer licensed by GM and therefore not regulated by them in any way.Opie Oils sells oils manufactured to the GM ATF and gear oil specifications; Opie Oils is not a licensed GM dealer or repair centre.