if i granny it on the high way ive gotten 25, about 12 mixed city and highway, the worst ive gotten was 6 lol

6mpg? must have run it pretty hard to get that lol

I havent got mine below 20, even the tank after I got my stack put in, and I had a really heavy foot the whole time, I got right at 21.

stock 12v with 4" lift 35X12.5 tires, long bed, ex cab with shell, 20-25 hwy @ 2k RPM'S =63 mph

Best I have got is 19 and the worst it 14.

I just ordered and M4 fuel pin from M&H inc and im super stoked should be ariving tomorrow how will this fuel pin effect my MPG i have a 1991 dodge D 350 automatic non-intercooled

Keep your foot out of it and you wont see any difference. Its all driving habits.

I'm getting a #8 fuel plate. Can someone tell me how to set it up ?

ive gotten 20 on highway and worst was 9ish going 95 across idaho in bad headwinds... fuel gauge is broken i usually just fill up every 3-400 miles i went 330 miles on 35 gallons of diesel standing in -15 with a sign asking got diesel? finally just filled it up with tranny/engine oil and it got me to the nearest diesel station

economy
 

Hi, i saw where used trany oil to get where you needed to get,back about 30yrs ago i put a
4 cly. nissan diesel in a 74 vega and ran out of fuel and what i used was motor&gas mix for a
chain saw to get home,my sister thought it wasa good idea to put gas in it one day did not
run very well drained tank,put diesel ran for yrs. no problems,not a good idea but it works.

worst i have gotten was a parade lap at jambo.... one lap about one mile and used 17 gallons of fuel... heheheh