TexaCoMo

I have searched through my owner's manual and can't find any *official* recommendations from Ford, so I thought I would ask for thoughts here.

If you are carrying, say, 700-1000 lbs. in your bed (not towing), do you disengage the overdrive? I've noticed more frequent downshifting on 5-10% uphill grades when carrying a load.

Aside from towing, is there an unwritten rule about a point where the overdrive should be disengaged?

Kokeshx4

i believe exceeding 1000 lbs is about the limit, both towing and hauling in box, of were you should disengage overdrive. towing would be the combination of the trailer and the load equaling 1000 lbs or more.