Castrol TranSynd 668 Full-Synthetic ATF for Allison Transmissions (1 gal x3)
Full-synthetic automatic transmission fluid designed for ALLISON transmissions. Promotes extended drain intervals and stable viscosity for wear protection. Customer insight notes mixed sentiment with unspecified items
Highlights
- designed for ALLISON/TES 468 compatibility
- extended drain intervals up to 300,000 miles / 48 months
- stable viscosity under shear
Pros
- full-synthetic formulation
- designed for ALLISON transmissions
- extended drain intervals
- stable viscosity under operation
- wear protection in gears
Cons
- customer insights unavailable or mixed
- only described for specific transmissions
- no price or availability details
Best For
Features
- Full-synthetic ATF designed for ALLISON transmissions; TES 468 coverage included
- Extends drain intervals up to 300,000 miles / 48 months in general-duty transmissions
- Drains up to 150,000 miles / 48 months in severe-duty transmissions
- Provides 12x longer drain interval than conventional non-TES 668 and non-TES 295 fluids
- Shear-stable viscosity supports wear protection across the drain interval
