Originally Posted by f150man3.5
Actually my salesman has 2011 f150, and tows a tt, just telling yah what he told me. 5th and 6th are overdrive gears, and to to stop it from shifting back and forth. I locked out 4th gear(which is an overdrive gear) in my inlaws 2004 f150 with the 5.4.(towing around 6000 tt+ people+gear) if i didn't it would constanlty be shifting back and forth. At the end of the day it's your truck, tow how you want, but i think i will lock out the overdrive for those heavy loads.
As I said, the manual says to tow in t/h mode and it is safe to tow in OD because torque converter is locked. As I also said, my EB can easily tow in 6th gear and it doesn't shift too often, you would be surprised of the hils it can climb without shifting in 5th... My question was to those who tow with EB and it was gas mileage related between 5th gear and 6th gear
I appreciate the time you took to answer but trust me, towing with a 5.4 with 4speed tranny is very different than an EB with 6sp.