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...
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Most ATF can handle normal operating temperatures of 175 to 190 degrees F. But as the operating temperature goes up, the life of the fluid drops. For every 20 degree increase in fluid temperature beyond the normal range, the life of the fluid is cut roughly in half!
Temp chart
Temp chart
