You guys might be right, torque converter may not be capable of taking the more load, but I am telling you, the way the engine feels, I think it could easily, without even trying, pull the RV up almost any hill in the 4th gear. Is there a way to perhaps connect a light to the transmission somehow so it would light up when the torque converter is locked. Just out of curiosity. I want to see when it locks up, and when it disconnects. Perhaps I can modify my driving style to get it to disconnect less often.
I usually drive with cruise control set to 55mph, so I doubt the speed is a problem. I guess there isn't much of a problem, since from what it sounds like, my milage is right in the ball park. I was just hoping that I could get a little more :)
