Originally Posted by Old Scout
fluid change interval for general use vs severe is filters every 3 years or 36k miles; and fluid and filter every 5 years or 60k--I think???
Which transmission do you have? I will assume it's the Allison 360.
Severe is like the equipment use is mines or earthmoving equipment, maybe a yard-dog.
Most MH fall into normal.
Your MH should have been built using Allison's Transynd TES-295 which I belive was rated ror 100k or 5 years which ever comes first
Allison recomended you upgrade your fluid to transynd TES-668. Pickup a filter kit at an alllison shop they will have the latest filter and be able to tell you which fluid is the latest you should use. You will need your transmission sn and model number.
I change my fluid and filter every 6-7 years. I will never max out the miles, just time out.