Join Date: Apr 2008
Location: Grass Valley, CA
Re: cant seem to get better than 15mpg?
Well, 165K? how does the ole' auto shift?
that edge is probably killing you. it enables your truck to use alot more fuel. do you have gauges? that's the easiest way to describe how to accelerate to save fuel.
Also, what is your tire pressure? that's a surprising amount of drag that can be removed easily.
I don't have any idea about a ford "flash" that would be bad for your mileage, but I don't think that would have too much to do with this.
Long bed or short bed?
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.