Magoo
Blind Brain Surgeon
Mine is new. Got all known bugs worked out. The truck has 4.10 gears with 33 inch tires and have the speedo gear corectioin. I get 12mpg at best. And, it is slow moving off idel. In other words it has to build RPMs to get moving. Have a buddy who brought by his 83 Chevy 3/4 ton 4x with the 6.2 na diesel. Off idel its like a gasser. Takes off imediately and he is getting 18mpg and swears his best hiway run was 22mpg. Same gearing and I'd swear he has as much if not more pulling power. Seams like there must be something wrong with mine. As I recal though, all the Ford diesels I drove were slow off the line. Even some of the power strokes. It really bums me out. I would like to getter mpg out of her. My old 65 gets 12 and she has a built 390 in her now.