Fuel Mileage issues on my 86 C10

[Irish_Alley]

on my 86 1/2 w 350, 350t and 31s in the back i was getting 12-14 depending on where i got gas. but with the dash in there if you have a known mile you can set it at the start and stop it at the end of the mile and then it will tell you the right mph and distance

[Flamingbig10]

I saw some of your build pics on the truck I would say keep it as long as you can

[jaspencer]

I'm in the process of restoring my 78 Scottsdale and a diesel conversion has crossed my mind. I'm not thinking of it for mileage reasons though, I'll probably run it off veggy oil if I go through with it. Several guys I know are running mid to late 90's F350s with no problems. They say they occasionally run some type of cleaner with a tank of diesel to keep everything clean. They have found a couple sources of high quality used oil and say it costs about 40-50 cents a gallon to prep it(filtering process). I feel sure a military donor blazer can be found pretty cheap. My truck is completely torn apart though...yours in finished. Wanna trade