Well I have 5700 miles on my trd off rd double cab and the last 500 miles the truck transmission has really changed. I'm not one of those guys who thinks its real or when u ask what kinda mpg I am getting and say "I can go all week on a tank of gas" what a dumb answer. I live in western nc and there is a section of interstate that I drive several times a week. Before hand the Trans would shift 6 to 5 to 4 to 5 to 4 etc the entire way there and back, it pissed me off to no end. The last few days it barely comes out of 6th. Never hits 4th. Take off feels stouter. The only thing I can think of is the warmer weather. I know cold air is better, but it has been pretty cold this winter. Temps been in 60s and 70s lately. It has put a smile on my face and for now not thinking about swapping for a manual. Mpg has been ave 20.x since new. Sometimes 22 some times 19 bUT strong 20 average. I really enjoy this truck for what it is but hated the transmission, so it if keeps down this path, I'll drive it to 200k.