Castrol TranSynd 668 Full-Synthetic Automatic Transmission Fluid, 1 Gallon, Pack of 3

TranSynd is a full-synthetic, automatic transmission fluid designed specifically for ALLISON transmissions / TES 468 is now covered by TranSynd 668

Allows for extended drain intervals of up to 300,000 miles / 48 months in general-duty transmissions and up to 150,000 miles / 48 months in severe-duty transmissions

12 times longer drain intervals than conventional and other non-TES 668 and non0-TES 295 fluids

Shear stability that helps maintain a stable viscosity which provides wear protection in gears throughout the drain interval

Improved gear protection, extended anti-shudder durability and extended clutch-friction durability