Allison® transmission has established the Technical Engineering Specification 295 (TES-295) for automatic transmission fluids. When TES-295 products are used in Allison® transmissions and according to Allison® recommendations as outlined in Allison® Service Information Letter 10-TR-99, Rev. B, the service life of these oils can be extended several times that of mineral oils. This extended drain recommendation saves money for Allison® transmission owners.