Forum Discussion
mci7
Apr 23, 2011Explorer
Reference to the 4000MHR transmission, using the Detroit TranSynd oil, What would the max safe temp allowed when decending a mountain using the retarder ?
So far, have not let it go above 220F.
Many thanks
So far, have not let it go above 220F.
Many thanks
About Motorhome Group
38,764 PostsLatest Activity: Dec 25, 2025