Allison TES 668™ is the newly designated OEM oil standard for heavy and medium duty Allison Transmissions.

Allison created the new TES 668™ specification to provide their customers with a fluid that would do more – provide better friction performance and better wear protection for their transmissions.

DuraDrive HD Synthetic 668 is the first fluid to complete Allison’s rigorous validation program, receive license approval, and be awarded Allison’s global factory fill program. DuraDrive HD Synthetic 668 will be backwards compatible for every heavy and medium duty Allison transmission that currently requires approved TES 295® ATF.

As the integrated base oil supplier and finished product formulator for DuraDrive HD Synthetic 668, Petro-Canada Lubricants provided a fluid that met all of Allison’s requirements.

By leveraging our world class R&D capabilities and highly consultative working practices, we developed a superior solution.

Ultra-pure, high-performance synthetic Petro-Canada Lubricants base oils form the basis of the TES 668™ approved formulation. Together with a top tier additive solution, this finished fluid has earned the trust of Allison Transmission.

DuraDrive HD Synthetic 668 is recommended for Allison’s on-highway products. The formulation delivers improved performance and operating benefits for Allison Transmission equipped vehicles and the businesses that rely on them.

Performance Enhancement – anti-shudder and torque control; which means smoother acceleration even under demanding conditions.

Equipment Protection - improved wear protection and component life; which means greater transmission longevity and asset value.

Durability - excellent oxidation control helps shield components from damage caused by sludge, varnish and corrosion; which means improved fluid and transmission components life.

TES 295® and TES 668™ are registered trademarks of Allison Transmission, Inc.