Allison 4000 Service Schedule
Building my annual spring service list, I decided to look a bit harder at the service schedule for the big Allison tranny. Not much info in the Spartan manual, and couldn't find much on the internet. I found an older post (2005-ish) that indicated an initial fluid/filter change was required at 20,000 miles. However, looking at a newer post on the same series of transmission but a circa 2015 model, it does not mention this. Now I am confused......
So what is the service interval used by you 4000 mh tranny's in the Cornerstones? Have you thought about it yet?
Curious to know.....
Ernie and Dianna Northern
2015 Entegra Anthem 44 DLQ2017 Entegra Cornerstone 45B
2013 Equinox toad/2014 Jeep GC diesel