Petro-Canada Lubricants DuraDrive HD Synthetic 668 Transmission Fluid is compatible with Allison Transmissions’ TES 668 drain standard set to take effect Jan. 1 for its on-highway automatic ...

“With Delo Syn ATF 668, we are enabling work truck and bus operators to decrease maintenance needs and increase the amount of time a vehicle can remain in operation for critical services to ...

According to Allison, TES 668 improves on the previous TES 295 transmission fluid spec in oxidative stability, anti-wear performance and friction modifier durability. These factors improve the ...

Allison’s new TES 668 is a modern formulation with many advantages compared to mineral-based, non-synthetic fluids, according to the transmission maker. This next generation transmission fluid ...