Changing transmission fluid
My 2010 silverado is creeping up on 30k miles. I pretty much only use it for towing or hauling something. Tranny temps while towing are typically around 200-220 and some minor runs at 235 on large gra...
Forum Discussion
NHIrish wrote:
Chevrolet recommends Dex VI for my year...Allison does not recommend Dex VI anymore ( maybe since they are no owned by GM or however that went). They recommend Transynd or similar. Way too pricy for me at 70 bucks a gallon. I go with the full syn Dex VI and keep my intervals short. Virtually all of my mileage is towing 15000 lb fifth wheel.
I bought fluid and filters for my Allison transmission at Allison dealers, usually heavy truck shops. It was only about $40/gal (this is a couple years ago) for Transynd or other Allison-approved fluids, so it was actually cheaper than Dex VI from auto shops. Their spin-off filters were also very cheap -- $7 or so, where the Chevy dealers wanted more than twice that. Fluid change on the Ally is very easy.
