RPM's, Speed, and Gas Mileage!

last time on the highway 1800 rpm's at 70 mph 16 mpg

 

65 at 1900rpm .... 13mpg

 

ur speedo aint even programmed for ur tires is it?

 

its 10mph off , so when it says 55 , im doin 65 , so i said 65 and corrected it

 

if I get 4.56's ill be doin
1992 at 65 mph

 

thats 30 mpg in my tiny sh!t car, haha

dont get me wrong 7.3 FTMFW! but even at 23mpg with diesel being $4.50+ a gallon its gotta equal out to somewhere around 15mpg for a gasser

 

diesel at $4.50 at 23 mpg means your burning $0.19 of diesel per mile

gas at $3.89 at 14 mpg means your burning $0.27 of gas per mile

for it to even out you need 20mpg in a gasser to equal the $0.19 per mile in a diesel

 

70 - 2000 rpms and 10 mpg

30-45 stop n go (city) 8-9 mpg

 

ok, it works out then, i didn't feel like doing all the math, haha

 

so with my 5.4L 4R75W 3.73 gears and 35's with edge evo and 89 octane

55mph @1250rpm estimate 19mpg
65mph @1600rpm estimate 17mpg
75mph @1750rpm estimate 16mpg