Castrol TranSynd 668 full-synthetic ATF for Allison transmissions
Full-synthetic automatic transmission fluid designed for ALLISON transmissions. Features extended drain intervals and stable viscosity to protect gears. Customers note smooth shifting and value for money
Highlights
- extends drain intervals
- shear-stable viscosity
- Allison-specific design
Pros
- designed for ALLISON transmissions
- extended drain intervals
- stable viscosity for wear protection
- smooth shifting performance
- value for money
Cons
- based on customer notes for Allison models
- no explicit compatibility for non-Allison 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 or 48 months in general-duty
- Up to 150,000 miles or 48 months in severe-duty transmissions
- Maintains stable viscosity under shear for gear wear protection across the drain interval
- Improved gear protection with extended anti-shudder durability and clutch-friction durability
