I do a lot of towing with my 07 Escalade AWD. Yes the mileages sucks…, but that is not my concern.
While towing in hilly terrain the transmission oil often gets very hot. A couple of times the temperature has been so high that “fail safe” mode has engaged – locking the transmission in 1st gear. I always use the tow mode. My trailer weights between 7000 and 7500lbs when loaded.
Is there a transmission cooler upgrade available for the Escalade - OEM or aftermarked? Any recommendations?