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
Turtle n Peeps wrote:
All the experts will agree that 250 is no problem with modern fluids. At 270F you better start thinking about doing something.
It's a mute point anyway. If you are not over the GCVWR you won't even see close to these temps. 100 + ambient is a rule of thumb and close to what you should be seeing.
In short, with a modern truck you don't have to worry about tranny heat if loaded correctly.
X3.
The charts on the internet are OUTDATED...and do not apply to the modern synthetic ATF nearly every OEM is using today.
270-300 would be time to shut down and raise eyebrows as to how and why it got that hot.
Seals, clutches, bands...they are all designed to handle the heat today. We are not in the 80's or 90's.
