azxj99

at that mpgs a programmer isnt going to change much but wow thats great even stock. i have to drive like a sloth to get near that in a jeep with no lift

Tural

if i could, i would get out and push it to save gas. although, you can't be too light on the throttle, it can overwork your automatic tranny pump.

cob24

http://www.seafoamsales.com/how-to-u...treatment.html

This should help. I swear I have posted this link like 75 times on this forum and I will do it 75 more. THe stuff really works!

azxj99

i happen to know this the hard way, it also builds up carbon in the engine, i drive it pretty usual, just ease up off the start and time the lights

SHO_91

I prefer the manual over an A/T every time I get a chance. But your numbers are really good. My best is 25 mpg on the freeway with the 2.5l I-4.

Tural

i like manual too. but this was a christmas gift. you can't pick on a free XJ. scratch that, you can't pick on an XJ PERIOD.

SHO_91

Haha, that's true, my XJ is maybe the most enjoyable ride I ever had, time will tell. I like how mine has minimal BS in terms of gimmicks, and gets down and dirty when I want it to.

chrisnation

It costs GBP£86/US$135 to fill my standard 2.5L TD XJ's 76L tank with diesel. That, my friends, = US$1.78/L. Petrol/Gasoline is US$0.015/L cheaper. Great.

There will be a £0.02/US$0.035 per litre tax hike in a few days. Then another rise of the same amount in two lumps before the next budget in March '11. Then it will go up again.

All this is on top of any price rises by the oil companies of the raw material itself. And because the tax is on the cost of the raw fuel, any increase in that will attract yet more tax! And there is even a tax on the tax! Yes - there's 17.5% tax on the price of a litre, including the fuel duty tax!

Here in UK, you can tell the drivers who are paying for their own fuel. They're the ones doing 57mph on the motorways, 1mph more than the restricted speed of the trucks.

I was in LA the week that gas broke the US$1/gall mark. [Yes, I'm very old.] The reaction of the citizens of CA was, to us Brits, most amusing. Gas stations went to rationing - allowing odd and even licence plates to gas up on alternate days. There were queue-jumper shootings!

Anything less than 30 mpg is regarded here as about as socially and environmentally responsible as burning piles of tyres in your back yard. Fortunately, Tonto ll will do 35+ on a motorway run. But my eco-warrior friends still think the XJ is really a Hummer that shrank in the wash.

You wanna know how to get more mpg? We know. There's rather more to it than removing your roof bars. For a start, you throw away all those 4L gas "boat anchors". Instal oil burners. Then you'll have torque coming out of your ears and twice the mpg.

You guys have got it sooooooo easy on your pockets - but you're not really paying the true cost.

But then, pity the poor Dutch, paying US$2.10/L for gas or the Norwegians paying US$1.92/L for diesel.

superj

i finally took the ol cherokee on a road trip longer then 15 miles. of course, the alternator immediately took a dump as soon as we were out of cell and walking distance to anything. luckily i was wise to her crafty ways and had a spare alternator in the hatch area and tools. 45 minutes on the side of the highway and we were rolling again.

250 miles on a tank equalled out to 16.5mpg. pretty dang good for having half a 5" lift on the back and 2" on the front. one day i'll get enough time to finish the front.

fireman263

Hello, I saw an article on the web that the first 2.5TD drove from the engine factory in India to the uk on one tank of fuel,a world record. It still had enough fuel to drive from the docks, North, another 100 or so miles to the drivers home. Standard tank and sealed fuel system. Mike

no rdplz

4.0 with auto. Currently I'm getting bout 16 city and 21 hwy with CAI, 2.5" exhaust, 3" lift, 30's, and a roof rack. Best I ever got was 23 on the hwy and that was when it was stock. Did the Seafoam (it works wonders), higher end plugs, wires, cap, and rotor too. I could get better and it comes down to one thing - the pedal on the right. the biggest influence on what kind of MPG's you're getting is you.

Tural

it's the VA thing. we get better mpg here... ha ha..

funkle95xj

Another idea for increasing your fuel economy is to relocate your intake air temp sensor from the intake manifold to your airbox or airtube. The stock location exposes the sensor to alot of heat soak, and can cause the sensor to read that the intake air temp is way higher than it really is. This can cause the computer to compensate by leaning out the air/fuel ratio too much, which can cause worse fuel mileage. Relocating the sensor allows it access to fresh incoming air, and moves it away from the heat soak of the intake manifold. This allows for more accurate readings, and in my experience about a 1-2 mpg increase (Was getting 13-14 city, now getting 14-15). Here's the writeup: https://www.cherokeeforum.com/f51/bu...location-2599/

And a picture of my setup with the modified stock airbox lid removed. I simply grabbed a nice clean Intake Air Temp sensor at the JY and left the old one in the factory location. (easier than finding a matching bolt to plug the hole in the intake manifold for the sensor.) Then extended the sensor's wiring as instructed in the writeup...

chrisnation

AAAAaaaaarrrrrgggghhh No! No! No! Don't let this become another XJ urban myth! The factory producing these TD lumps for Jeeps is in ITALY! Pastaville! Tootsie-frootsie ice-a -cream! They have won various power-boat trophies with their diesels, by the by.

And the XJ TD, once it reached UK, went from Jeep's UK HQ at Dover [where most of the cross-Channel ferrys dock], to London [80 miles] presumably for a PR gig, back to Dover and then the driver reckoned there may have been another 100 miles in the tank.

The whole thing was monitored by one of our finest boys in blue, Police Constable Someone-or-other of one of our regional police forces, who sealed the filler at the start and unsealed it at the end, at Jeep HQ, Dover.

The crow-fly distance from Delhi [capital of India for the clearly geographically challenged amongst us] to London [4164 miles] would need an XJ 2.5 TD to do 299.802 mpUSg. As my friend French Franck says, "Chreeees. I don' theeenk so."

And the crow-fly distance is a definite no-no. Pakistani roads are hell on wheels. I know. I rode a Triumph Speed Twin around North West Frontier Province for 8 months. Lucky to be alive now. Afghanistan anyone? One of my collegues survived less than 24 hrs after arriving from Norway. Her vehicle was driven over an anti-tank mine on a trip into Afghanistan to survey agricultural matters. And how about Iran? Axis of Evil, according to Dubbya. Turkey is baaaaaad. Been there, too. Saw two trucks in a mess of wreckage on a cross roads where either driver must have been able to see the other for miles, out on the steppe. Greece? A nightmare. Italy? Terrifying. France? They are seriously crazy.

I can see why only 20% of US citizens hold passports. It's a mad, mad world out there and gas is a million dollars a tankful.

Just leave some over for us.

96_xj

I dont believe how far the 2.5td travelled however I am only (11 days till) 20 and am on my second passport. Mind you i got my first one when i was 14 and filled it up with some extra pages and now i am on my second one =] (never been to mexico tho except for once to juarez). I travel the world quiet often and have driven in many of the places you have mentioned above and they are not to bad, some of the roads, yes terrible, but observe how others drive and you do just fine =] trust me i know from experience. The scariest place i have driven is in honduras where on a blind curve on a narrow highway semi's will pass even if there is a double line on the road.

i am going to look into this story..... but as far as i know the world record is set by a gutted honda civic that was light enough to be pulled along by the wake of semi's letting him shut off his engine for long periods at a time. and he made it from west coast to east coast netting 90 miles to the gallon