allison oil change [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: allison oil change


Robgmcman
01-19-2005, 12:17 AM
05 allision and i was just wondering what fluid they put into it when it is built? I am thinking none syn but i am not sure. The owners manual said dexton III h certification. I am not able to find h only g certification. No dealer can give me a answer.

thanks

dmaxalliTech
01-19-2005, 12:18 AM
Any Dex III will be fine. The H is just the latest and greatest but its completely compatible with all Dex.

Its not synthetic from the factory

Robgmcman
01-19-2005, 02:07 AM
Thanks so much