Mods for Mileage?

[SoCalPSD]

Unsure of my gears but im at 21 ish on the highway with cruise set at like 17-1800 which is 67mph for me.

SoCalPsd-Corey

 

[vanderchevy18]

I may be showing my ignorance here, but where did 1.015 come from. I'm assuming 300 is # of miles driven and 13.9 is gallons used.

300 is miles on the speedometer. Doing 50-55mph I go 1.015 miles for every mile shown on the odometer. Its actually more like 1.02 at 65mph but under 50 the odometer is closer to being right, and there is some driving under 50 in town. So I use mileage x 1.015 when I fill up.

Now Arisely brought up a good point. On the track I get a little less. I actually get about 1 gallon per mile. LOLLOLLOLLOLLOLLOL

 

[Powerstroke Cowboy]

Unsure of my gears but im at 21 ish on the highway with cruise set at like 17-1800 which is 67mph for me.

SoCalPsd-Corey

sounds like 3:55 to me.

 

[vanderchevy18]

Or they're 3:73 and he has 35's or 37's. That's actually pretty close to what I get. I have 3:73 with 35's and I'm just under 2k rpms at 70mph. Speedometer says 65 though.

 

[SoCalPSD]

Nope no lift and stock size tires, maybe a size up. Only thing suspension wise was removing 2 leafs from the rear. Not to mention my truck is a ex cab shorty.

SoCalPsd-Corey