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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...
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ticat900's avatar
ticat900
Explorer
Apr 10, 2011
randallb wrote:
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


Iam On my 3rd DP with cummins/Allison 3000 trans and they all run 180-210 dpending on loads and hills and weather temps.I have never seen one run 150 in these conditions.

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