JW51 The first vehicle I ever drove for real had overdrive,the ton truck size load of factory,home built,combinations of other stuff NEVER got any economy for me. The .7 overdrive ratio always was too much. I had piles of calculations just like is above. Not until modern GM equipment(2019) did I see much economy a turbowed 1.5 litre mountain climber with cooling,handles like a dirt car,is safe,it's even guaranteed,is the best i've seen. Easily goes by gas pumps at 31.5 mpg. that is with a suitcase handle for the DRIVER to give his worn out shoulder some therapy. Also made in America... um Mexico IS in America right?? bought it for a song too right before everything went over the mountain !!