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Old 05-21-2022, 05:36 PM   #1
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Transmission running Temperature

Picked up our new 2022 Newmar London Aire.
First long run was today.
The transmission temperature hovered around 200 degrees.
Pretty flat terrain and was running 65-70 mph
Is that a normal temperature?
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Old 05-21-2022, 05:44 PM   #2
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You would have to know your transmission fluid cooler setup .

Most trans fluid coolers would be in the tank of the radiator , so trans temperatures would mirror engine temps .


What were engine temps at the time ?
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Old 05-21-2022, 05:47 PM   #3
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Yes Dave, your temperature is normal .....
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Old 05-21-2022, 08:10 PM   #4
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Dave,

I believe my trans is the same as yours. 200 is slightly on the high end for me but would not concern me. On flat ground my trans temperature runs in the 180’s. But that might vary a little with external air temperature.
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Old 05-22-2022, 07:04 PM   #5
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Your temperature is pretty normal, much depends on outside temperature. We run anywhere from 190 to 220s on our 2022 LA
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Old 05-24-2022, 04:29 PM   #6
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Normal, fan kicks on at 205. I too was surprised at my temp, called Spartan and had it all checked out. Perfectly normal. I range between 180 and 210.
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Old 05-26-2022, 04:14 AM   #7
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Just for comparison; My Allison was running about 200 (slightly higher on long grades) before I replaced the filters and fluid, now the temperature stays between 180 and 190 all the time.
An Allison transmission in an RV is considered light/medium-duty operation.
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Old 05-26-2022, 05:19 AM   #8
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Quote:
Originally Posted by Ray,IN View Post
Just for comparison; My Allison was running about 200 (slightly higher on long grades) before I replaced the filters and fluid, now the temperature stays between 180 and 190 all the time.
An Allison transmission in an RV is considered light/medium-duty operation.
Its the difference in the year's Ray, Today's motor's on everything run a whole lot hotter cause of emission's, thus the tranny temps will be hotter.
20 years ago, all motor's ran a lot cooler........
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Old 05-26-2022, 09:17 AM   #9
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Quote:
Originally Posted by Ray,IN View Post
Just for comparison; My Allison was running about 200 (slightly higher on long grades) before I replaced the filters and fluid, now the temperature stays between 180 and 190 all the time.
An Allison transmission in an RV is considered light/medium-duty operation.
I also noticed that my M3000 runs a little cooler after switching to Transynd 668 and new filters.
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