Join Date: Apr 2008
Location: Grass Valley, CA
Re: poor mpg 7.3L
winter fuel regularly drops my mileage by 2-2.5...
also, I know it sounds like an awfully small change to make a big difference, but slow down to 65 if you can bear it.
Do you have EGT
96 Powerstroke: 6637, downpipe to dump exhaust, 140v IDM and a shift kit.
84 Honda Sabre V65 1100: pipes, jet kit and new tires. Faster than I think I'll ever need.