Tranny temps: how hot is too hot?
I recently got a 5th wheel camper that I will be towing with my 2011 Silverado 1500 LTZ. It has the HD trailering and HD cooling packages (RPO codes K5L and Z82). What would you consider to be high tr...
Forum Discussion
On my previous 2007 Ram/Cummins, the TRANS TEMP warning light was calibrated to come on at 260*F. I had it up to 250*F before with no warning light. So the manufacturer thinks anything over 260*F is definitely a problem, and I agree.
I think something that is important to remember is the duration of those temps. 250*F while climbing a short grade (a few minutes or less) vs. all day long is quite a different issue. I wouldn't want to run a trans to 250 all day, but a short spike to 250 while climbing a hill is no big deal.
I like to see mine under 210*F sustained, 250*F for very short periods.
I think something that is important to remember is the duration of those temps. 250*F while climbing a short grade (a few minutes or less) vs. all day long is quite a different issue. I wouldn't want to run a trans to 250 all day, but a short spike to 250 while climbing a hill is no big deal.
I like to see mine under 210*F sustained, 250*F for very short periods.
