General Motors DEXRON ATF Specifications
Looking for DEXRON Gear Oil for Your Automatic Transmission? You'll find a great range here
DEXRON ® is a registered trademark of General Motors Corporation. Since the beginning of 2007, GM have only supported only the use of DEXRON-VI fluids; all DEXRON-III licenses expired at the end of 2006, and will not be renewed.
The DEXRON-III licensing system therefore no longer exists so these fluids are not regulated in any way, but we have categorised the oils that met the earlier DEXRON quality standards in the categories below.
If you're unsure which DEXRON Oil is correct for your application, or have a modified or unique Vehicle why not ask the Opie Experts for a Custom Gear Oil recommendation.
DEXRON ®: Purchase online from Opie Oils
Find By Car Details
Dexron-II ATF Specification was introduced in 1972 with an alternative friction modifier for the time (Jojoba plant based), it is ideal for certain older vehicle applications
Dexron-IID ATF Specification was introduced quickly after Dexron-II in 1975 with corrosion inhibitors to fix problems with corrosion-prone solder in GM's transmission fluid coolers
Dexron-IIE ATF Specification (GM Spec GM6137M) was introduced quickly after Dexron-IID, the IIE formulation is to address excessive hygroscopicity IID so make it more suited to hydraulic systems
Dexron-III ATF Specification (GM Spec GM6417M and later GMN10055) is generally backward-compatible with gearboxes using earlier Dexron fluids or Type-A/Suffix-A fluid