United Synthetic HD Next-Gen ATF meets the Allison TES 668 standards and carries Allison’s transmission engineering specification of badge approval 668-10462024. This robust formulation meets the most demanding specifications, designed for severe duty and extended drain intervals.
This full synthetic formulation maintains many advantages compared to mineral-based, non-synthetic fluids.
TES 668 builds on performance of TES 295 fluid in several key areas, such as oxidative stability, anti-wear performance and friction modifier durability. These factors improve:
- The quality of the shifts.
- Noise reduction, vibration and harshness experienced as the fluid ages.
- Friction performance, this provides more consistent clutch application – even across temperature variations and load sizes.