Introducing the next generation of synthetic on-highway automatic transmission fluid, Allison Transmission TES 668^®. TES 668^® builds upon the proven 20-year record of TES 295^® synthetic fluid by delivering the same great performance with a modern additive package. The robust formulation of TES 668^® meets the most demanding specifications related to fluid stability, lubrication and cold operation.

Allison recommends TES 668^® Approved Fluids to extend drain intervals and enhance transmission performance and durability in all operating environments.

Allison TES 668^® Approved Fluids are recommended for use in Allison 1000 Series™, 2000 Series™, 3000 Series™, 4000 Series™ and H 40/50 EP™ on-highway products.

To purchase an Allison approved fluid, use the Sales + Service Locator to find an Allison Authorized Distributor in your area.

Allison Transmission TES 295^® Approved Fluids are approved for use in Allison 1000 Series™, 2000 Series™, 3000 Series™, 4000 Series™ and H 40/50 EP™ on-highway products.

Allison recommends that customers using TES 295^® Approved Fluid consider Allison’s newest fluid spec, TES 668^®, for their next service.

To purchase an Allison approved fluid, use the Sales + Service Locator to find an Allison Authorized Distributor in your area.

Allison Transmission TES 468™ Approved Fluids are approved for use in Allison H 40/50 EP™ on-highway products and may be used anywhere a TES 295^® product is specified.

Allison recommends that customers using TES 468™ Approved Fluid consider Allison’s newest fluid spec, TES 668^®, for their next service.

To purchase an Allison approved fluid, use the Sales + Service Locator to find an Allison Authorized Distributor in your area.

Allison Transmission TES 389™ Approved Fluids are approved for use in traditional on-highway products.

Allison recommends that customers using TES 389™ Approved Fluid consider Allison’s newest fluid spec, TES 668^®, for their next service.

To purchase an Allison approved fluid, use the Sales + Service Locator to find an Allison Authorized Distributor in your area.