Allison Transmission
My motorhome has the 3000 series Allison transmission and I am going to have the oil changed to a synthetic oil. How long will be between changes and how many miles can I expect. My motorhome has arou...
Forum Discussion
Allison's recommendations (requirements) have changed over the years. I suggest that you find a manual from the time frame of your coach's manufacture.
My own coach from the late 90's said that the first change to TranSynd didn't count; the next change was as if you hadn't switched. After the second change, follow the change intervals for TranSynd.
For my current coach, which came with TranSynd, the change intervals are:
Fluid: whichever comes first
150,000 miles
6000 hours
48 calendar months
Main and Lube Filter: whichever comes first
75,000 miles
3000 hours
36 calendar months
Tom
My own coach from the late 90's said that the first change to TranSynd didn't count; the next change was as if you hadn't switched. After the second change, follow the change intervals for TranSynd.
For my current coach, which came with TranSynd, the change intervals are:
Fluid: whichever comes first
150,000 miles
6000 hours
48 calendar months
Main and Lube Filter: whichever comes first
75,000 miles
3000 hours
36 calendar months
Tom
