xjmafia

Looking at a 2000 lifted XJ with 33s and 410 gears. Upgraded injectors etc. What kind of mileage would you guess it would or should get. It is built right. I drive 28 miles one way for work M-F. So I'm slightly curious. I get around 16 or 17 now with my daily and looking to bump up the cool factor and get into another xj. Just never had one that was tricked out

93XJeeper

not sure about the mpg but just so you know, the 2000-2001 model year XJ had the bad casting 0331 head. It's known for cracking.

thebyus

I'm on 35's with 4.56. Depends on the terrain. On flat, at highway speed, I'm between 13-15 mpg. On hilly terrain, it's closer to 10mpg. Of course this is a crawler that I drive to the trail, lots of armor, full size spare on the rear bumper, etc.

xjmafia

Pretty common issue? I really like this jeep

QUOTE=93XJeeper;3179989]not sure about the mpg but just so you know, the 2000-2001 model year XJ had the bad casting 0331 head. It's known for cracking.[/QUOTE]

Turbo X_J

~1 tank/week, no big deal.

A little FYI, it's a 15 year old vehicle, you can probably lower the red flag now.

xjmafia

Doesn't seem like it would be awful
ank/week, no big deal.


A little FYI, it's a 15 year old vehicle, you can probably lower the red flag now.[/QUOTE]

cleenrob

im between 15 and 17 in mine. motor has 703 injectors, apn header(that leaks), cowl snorkel,60mm throttle body, full exhaust, i drive about 80 miles a day right now in mine, some times more gotta get gas every 3-4 days

xjmafia

What lift/tires/gears? What do ya spend usually

QUOTE=cleenrob;3180444]im between 15 and 17 in mine. motor has 703 injectors, apn header(that leaks), cowl snorkel,60mm throttle body, full exhaust, i drive about 80 miles a day right now in mine, some times more gotta get gas every 3-4 days[/QUOTE]

cleenrob

33x12.5s 5.5 lift, 4.10s locked out back with gas at 1.69 right now about 25 a tank, but i fill up at a bout a 1/4 tank

xjmafia

Really Better mpg then I figured. At 1.99 or so here and 60 miles a day that isn't really to much more than I'd spend driving my boring s10 blazer...the jeep I'm looking at is 6.5 lift 410 gears bigger injectors. Better flowing water pump bigger radiator. Custom cold air intake 62mm Oversized Throttle Body

Fred/N0AZZ

My 99 4.0, 784 injectors, 64 mm TB, with 4 1/2" of lift lots of extra weight winch/bumper, rear tire carrier bumper, armor, sliders, roof rack 33x12:50x15's with 4.56 gears 15-17 mpg avg.


Only thing that affects the mileage on the one your looking at is the 4.10 gear and 33" tires, 4.10 for 31's best mileage. A quality tune up with attention to detail will help about anything to do better.

cleenrob

yup, i dont really care for my 4.10s, i would have preferred 4.56 gears. my axles were essentially free so i didnt care since they were close.

with the 4.10s im pretty sluggish on the highway especially up medium sized hill and up.

xjmafia

Yeah I can see it suckling more fuel with the 410s and 33s. I think I won't buy it then. He is asking premium price as its very nice but I don't want to have to go changing crap to get better mileage so it's affordable to drive.

thebyus

[/QUOTE]


People who don't have an '00-'01 are always yelling about the head issue. Sure it can happen, but for the amount of money most of us are already putting into these things, it's a small price. I have more $ tied up in tires alone, than a new head, even for the cost of having a shop do it.

andrewmp6

For the same gas mileage you can get a full size truck or bronco tho.