What Fluid Goes in Allison Transmission?

According to Allison, the new TES668 synthetic transmission oil is a contemporary formulation with a number of benefits over mineral-based, non-synthetic fluids. Allison 1000 Series, 2000 Series, 3000 Series, and 4000 Series automatic transmissions require this next-generation transmission fluid.

According to Allison, TES 668 improves on the preceding TES 295 transmission fluid specification in a number of crucial categories, including oxidative stability, anti-wear performance, and friction modifier durability. As the fluid matures, these characteristics increase the quality of the shifts and minimize noise, vibration, and harshness. Improved friction performance allows for more constant clutch operation, even when temperatures and load levels vary.

Your Allison transmission lives on!

What makes Allison Approved synthetic transmission fluids the best choice for Allison automatic transmissions? Because the standard was created by those who are the most familiar with Allison. Allison Approved synthetic fluids outperform traditional petroleum-based fluids and other synthetic fluids in terms of drain intervals, thermal properties, and viscosity. Synthetic-based Allison Approved Fluids have better viscosity that other fluids cannot match.

Allison can now support lengthy drain periods, even when working under strong loads, according to the revised specification. There are two drain intervals available for Allison: a conventional drain interval for Allison-approved TES 389 fluids and an extended drain interval for Allison-approved TES 295 fluids. The extended drain guideline for Tes668 synthetic transmission oil will be the same as for TES 295 fluids.

The new oil is designed for use in on-highway vehicles, including vocational vehicles, and is completely backwards compatible with any Allison gearbox that uses TES 295 fluid.

Benefits include:

  • Smoother performance: Even in tough conditions, anti-shudder and torque control make it simpler to drive, with smoother acceleration and quicker point-to-point acceleration.
  • Maximum longevity: For enhanced fluid life and transmission component life, excellent oxidation control helps shield components from damage caused by sludge, varnish, and corrosion.
  • Improved wear prevention translates to a longer transmission life

Officials from Petro-Canada praised the oil's comprehensive testing. It took hundreds of hours of rigorous testing in an Allison transmission under settings much above normal operating limits. Tes668 synthetic transmission oil has been thoroughly tested in both freezing North American winters and the scorching heat of the desert to guarantee that it can withstand high temperatures.

The ABOT (aluminum beaker oxidation test), for example, revealed that the oil has 14 times better oxidation control than the requirements and good oil thickening control. It outperformed the standards in anti-shudder durability tests by a factor of two. The FZG ASTM D5182 test revealed that the improved wear protection was optimal.

According to the business, the 99.9% pure synthetic base oil provides outstanding volatility management. Allison Transmission is currently approving numerous oil marketers for more approvals.

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