Fully Synthetic Automatic Transmission Fluid for Allison TES 668® applications, built directly on the proven field history of legacy TES 295® technology. It is the next generation fluid recommended by Allison for on-highway products, including hybrids, while maintaining the extended drain intervals of TES 295®. By actively improving component protection, it serves as the ideal and recommended upgrade for fleets transitioning away from older TES 295®, TES 389®, and TES 468™ fluids.

This advanced fluid offers long service life, lower maintenance cost and hardware reliability, achieved via advanced anti-wear protection and enhanced oxidative stability to prevent fluid degradation and maintaining critical film thickness over extended drain intervals. It also features highly robust friction modifier durability to provide superior anti-shudder performance, ensuring consistently smooth gear shifting and optimal power transfer.