DAUER ATF D6 automatic transmission fluid is 100% synthetic and is specifically formulated to be used in all those transmissions where DEXRON VI is recommended. This new formula provides oxidation stability and foam resistance, in addition, to prevent a loss of viscosity. It can be used in the new GM 6 transmissions speeds and is compatible with all older GM transmissions. This new formula allows you to extend the periods of change of this fluid in your vehicle.