Automatic or semi-automatic transmissions and torque converters of passenger cars, light commercial vehicles and industrial vehicles, when the manufacturer requires an ATF (Automatic Transmission Fluid) GM DEXRON® -IID.
Fluidmatic SYN T668 is a high-performance transmission fluid with extended oil-drain interval up to 150 000 miles under sever conditions or 300 000 miles under normal conditions, for specific conditions please refer to the Transmission Fluid/Filter Change Recommendations from Allison. Specifically developed for Allison very high-performance heavy-duty automatic gearboxes, Fluidmatic SYN T668 is approved by Allison TES 668.