Originally Posted by Okiespaniels
I don't believe you're ever going to get any kind of mileage out of a 5.9 and even 16mpg averages are skeptical...remember these trucks were built when gas was 1.68 a gallon!
Very true but a whopper combo with cheese was only $2.85 then too.... my point is inflation has changed the value of a dollar and we all make more $$ because of it these days so that $1.68 was more like $3.25 back then...
I totally agree though...I get 12mpg with 3" lift 35" tires and 4.56 gears to correct for those tires... not to stereo type but younger drivers often drive more aggressively so its not uncommon for those drivers to cry about 8-9 mpg with 5.2 or 5.9Ls on forums like these..(blown plenums and improper tire/gear ratios dont help)
You seem very conscious of this though.