Forum Discussion

hzjcm8's avatar
hzjcm8
Explorer
Apr 09, 2011

Let Me Know if You Have Allison Transmission Fluid Questions

Hi all, I've just joined Good Sam Club. I was the former Transmission Fluids Engineer at Allison Transmission. I held that position from 1990 until my retirement in 2009. Let me know if you have...
Class A
randallb's avatar
randallb
Explorer
Apr 10, 2011
hzjcm,
When my 340HP Cummins/2500 Allison combo was new the trans seemed to run extremely cold. As the mileage increased (32,000 now) the operating temp seemed to increase to the 150F range. Last August running from Yuma to San Diego I saw temps in excess of 210F. Is this a normal operating temp in 100F ambient?
Randy

About Motorhome Group

38,705 PostsLatest Activity: Jan 20, 2025