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 transmissions. Specified for on-highway vehicles, including vocational applications, DuraDrive HD Synthetic 668 is formulated to be fully backward-compatible for all Allison transmissions requiring an approved TES 295 fluid. It is formulated to reduce wear and unplanned maintenance and increase component lifespan, while oxidation control helps lengthen fluid life by shielding components from damage caused by sludge, varnish and corrosion. Enhanced anti-shudder performance and torque control leads to smoother acceleration in demanding applications. Improved protection of friction plates and gears extends the life of the transmission’s components and performance life.
