Tips for improving Gas Mileage
 

I'd appreciate any tips for mods that will improve the mpg's on my xj. thanks in advance!

cold air intake, injectors, proper tune up, open up the exhaust a lil bit. thats all i got for now oh and take the lead out of your shoes lol

Keep your tires aired up, and the front-end aligned and a clean air filter and that'll help some too.

And Welcome to CF.

you can always hook up a vacuum gauge, more vacuum the better mileage your gonna get

After I seafoamed my motor is runs better and so far from 2 tanks of gas it looks like i'm getting about 15 miles more out of a tank. That is with wheeling also

never heard of seafoam what is it?

buy a car :thumbsup:.
haha. sorry, i had to.

pretty much everything that was already mentioned will help, but these things aren't made for great gas mileage to begin with.

hybrid.

drive slower. your driving habits effect your mpgs more than any mod ever will.

get a diesel or a 4 cylinder, my xj 4 cyl gets 22 mpg hauling people with luggage up to lake tahoe; 4 people with the back full of luggage.

"soft pedal" technique....

100%...i have an ls1 camaro and i can't tell you how important driving technique is to imporve mileage.

One that gets consistently overlooked is changing your O2 sensor when you change your plugs etc. When they wear out, they can make your milage drop by making it run rich.

Don't stone me for this one. Don't get that lift kit or large tires.

Its an addative you can Pour into your Oil or your Gas, and (correct me if im wrong) but it "Burns" up all the build up and sludge in either the Oil System or the Fuel System, depending which you pour it into.