I did not get a transmission overheating warning from the truck. There was virtually no wind, and if anything, a slight tail wind. My RT-L is the AWD model with a 5,000 towing rating capacity. My trailer is a small, 19' fiberglass camper with a fairly flat front profile.Thunder works, it’s not clear to me from your Kansas post if you received a transmission overheat warning from the RL. Did you?
As others have asked, were you getting significant headwinds in Kansas? That could make 60 mph fell like 70-75 workload for your truck.
It may be that the 6AT just runs really this hot under those loads and parameters? Definitely would follow the extreme maintenance interval for ATF.
Curious what model of travel trailer you have. Wondering if the front profile is contributing to the workload.
also probably another dumb question but you do have AWD (not FWD) model, correct?
I've decided to add a larger cooler to replace the factory cooler. According to my mechanic (who I think is very good and thorough), the factory unit only holds about 4oz of oil. He's found an aftermarket option that would be roughly 4X that size, about a quart of tranny oil. Seems like a significant step up in cooling ability.