OK, so i know there are other ways to find these things on here but i really just wanted a straight forward list of guarenteed increases in mileage per gallon. Gas prices are going up and i just installed my subs which are pretty hefty, so im looking for ways to counter act both of these obstacles. Id like to do some junkyard mods if i could, im just looking for ways to get the best gas mileage. I have a 2000 Xj with 2" lift and 31" A/T tires and a magnaflow muffler. not sure if any of these effect the mileage too much. Thanks for any help, i could really use it!
-Graham

No one knows?

easy way to get better has mileage is 1) not to lift your jeep or put bigger tires on it 2) have a 4 banger put in it 3) 5 speed

well it came lifted, with the tires, and if im concerned with gas prices how am i supposed to swap the engine and tranny? LOL

Lift it as high as possible,it will cause death wobble forcing you to decrease speed therefore increasing your gas mileage.

you guys got jokes ( and i already have death wobble) but seriously...

haha

you could throw a can of seafoam in it when ur at bout 3/4 of a tank. dump it in at the end of the day so it can soak in the gas overnight

go for a cold air intake

i have heard of seafoam but never really thought about it, and i do have a cold air intake

i just bought some seafoam...gonna wait till my tank is about empty, then dump 1/2 the bottle in, fill 'er up then put the rest in the oil and vacuum line.

Clean the air filter. I got 2 mpg increase (probably more, but my calculations are still in progress) by tossing the present the original owner got me.

hrmmm..i will take a stab at it since i'm building up a list to try and increase my gas mileage as well.

Seafoam
Upgrade fuel injectors
complete tune-up
CAI
62mm throttle body
aftermarket highflow exhaust system: headers, cat, catback
keeping tires around 29" (255 or 265/70R15)

here is a thread to look into also: https://www.cherokeeforum.com/f2/imp...-xj-mpg-37071/

Switch to this oil.
http://www.royalpurple.com/motor-oil.html

The only thing I can offer is the usual stuff keep it tuned up change the oil regularly,check your tire pressure.I installed 703 injectors,not sure it made a mpg difference though if it did it was very little.Upgraded air filter would be a good idea.