[Odin]

took a bit but i got some results, unfortunately i am terrible at only doing one thing and testing it so i might have botched the results- I got the cap put it on, but i also changed the oil, changed the air filter, changed the fuel filter, got new tires, lowered the truck 4 inches, had the tires aligned and the temp went from mid 20s low 30's to the 50's- I've run two tanks through it so far, first tank measured 44mpg second tank was 45mpg at 90% highway driving - my highest to date i remember was 39 so its an improvement for sure... I think next tank will be without the cap again as to see how far it drops.
What i can't figure out is how the hell they came up with the 23city 29highway EPA rating I've never gotten anywhere near that even with almost 100% city its in the low 30's-