Fuel mileage

Hey everyone, I have a 01 D2 with 89k on it and have a bad fuel gage. Just want to know how many miles to a tank of fuel you all getting with normal type of driving. Maybe half highway and half city.
         TIA, Bob

Combination driving, I get about 260 to 280 per tank. I average 13 in town 15.5 combination trail and highway and about 18.5 MPG on the road.

I would go 250 miles to be safe.

Are you sure? I`ve been filling up when I hit 300. Then when I fill up it takes about 18 gal. Tank is about 25 gal isn`t it? This is why I `m asking. Maybe I`m on the verge of running out?? But my math doesn`t add up. I may be wrong on the 300 but I`ll have to check.

I fill up at 300 as well. It seems we are getting better milage than most. Probably just location differences.

I typically fill about 300 also.  My driving is almost all freeway, no stop and go. 

I think that our rotten 91 octane gas hurts us a bit here in California.  Plus I've noticed better mileage at higher altitude (within reason).

I just filled up on Turkey day and I had 321 miles on. It took slightly over 19 gal to fill up. I run 93 octane all the time. I guess fuel mileage wise I cant complain. Hummm! If only the dumb fuel gauge would work right!
       Thanks everyone!

I get roughly 300. But that is useally alil under 1/4th of a tank left (I've had very bad experience on my old isuzu when it went under 1/4 of a tank) thus i always fillup at 1/4 of a tank... I just dont trust those fuel gagues... liquid and floating device doesnt mix

Street tyres are better are better than offroad road tyres,
I thought most people took their LR's offroad.

My Rover is a weekend machine which does double duty. On and off road. Had it 2 weeks ago on a club function which I was amazed what it could do. It is totally stock. But found out I do want a lift and better tires right away. { Bashed in front air dam }

quote:

ORIGINAL: 03springer

My Rover is a weekend machine which does double duty. On and off road. Had it 2 weeks ago on a club function which I was amazed what it could do. It is totally stock. But found out I do want a lift and better tires right away. { Bashed in front air dam }

 
With off road tyers your mpg will suffer.
Not stock any more, "bashed in front air dam" time for the ARB.

Holly shoot, you guys get 1 1/2 times the mileage I get with the same amount of fuel. It's true that mine is driven all week in morning and evening traffic, and week-ends to run errands, but that's still unbelievably different.

Darover,
           Did you do a induction cleaning on yours? Cleaner in the tank? It`s the little things sometimes that make the big differances. I`m not worried about how many miles per gal I`m getting I just wanted to know how many miles I could get out of a tank of fuel since my fuel gauge doesn`t work right. I have Magnecor wires and the fusion plugs to install, but i`ll wait untill I actually need them.

I got the plug wires, the new plugs, sythetics everywhere new O2 sensors....a lift and 31 inch tires(265/70-16) which create a 6% speedo and odo error, and I'm not a fast driver by any means. Last tank, I got 12 m.p.g
 
It's true that its 80% morning and evening traffic with the rest highway. but, unless using the heated seats ( mornings are cold up here now) causes bad fuel economy, I can't explain why I went from 14 m.p.g to 12 m.p.g after changing my front O2 sensors with new o.e.m ones.

Taller tires should help in fuel economy. New 02 sensors are supposed to help too? Baffeling aint it? Or wait, Aint aint a word is it? LOL

No it aint !  I really can't explain it. Unless it has to do with the aftermarket y-pipe that was installed by the previous owner. When dealing with a gasket problem, I had removed the y-pipe, and had found that the entrance seemed to be very restrictive. Other than that, my O2 sensors are new, so I guess that if the cats were kaput, I'd get a code.
 
The truck rolls pretty smoothly when driving, therefore I don't think that the brakes are rubbing causing a resistance. And the tires are inflated to 34 psi front and 38 psi rear.
 
So I really don't understand what could cause other people with the same truck to get up to 4 more miles per gallon. 

I actually run 28psi in front and 38 in back. When I ran the fronts higher I would get a front end wobble. Sticker on door says to run them at 28 on front. Thats where I`m at. I`d like to get a roof rack so it will make fuel mileage go down. But hey, Its only fuel right??

quote:

ORIGINAL: Darover

I can't explain why I went from 14 m.p.g to 12 m.p.g after changing my front O2 sensors with new o.e.m ones.

 
I would guess that your regular station started mixing Ethanol up to 10% about the time you changed the O2's. Just a guess, but it will kill your mpg by 10%

With the cra-,, ethanol I lost 22% in town and 9% hwy .
 
I DO NOT LIKE ETHANOL, LESS OF EVERYTHING
but cost.

I was trying to find a link, map, anything that showed ethanol use by gas station is my area, but came up empty.
 
...anyone know off-hand which gas station companies as a rule use ethanol and which don't?

No way to tell, it is not mandated that they post the content. QT had a press release informing us they were beginning to use 10% Ethanol, but not 100% of the time. They came out on their own just to inform their customers. I still switched stations because my gauge doesn't work with Ethanol. I even went to see one of their reps with a "guaranteed gasoline" claim. They said it was probable that the ethanol was causing the problem, but due to the age of the car and that it isn't an "engine related" problem, no dice.
 
I agree with finding a renewable energy source, but you use more diesel (real high sulfer quality diesel) processing the land and getting the crops here. Kinda like electric cars. You have to burn a ton of coal to get one of those things going....

Oh shoot !!!! you guys are probably right!!! Don't know if it's ethanol, but it's the end of November, and the stations most likely switched to what we call winter gas. It always causes the mileage to drop.  But I'm still only getting 12-13 m.p.g in the summer.
 
Anyways, thanks for opening my eyes on this one. I was really concerned about it.

Doesn't the EPA mandate Ethanol in congested areas? Yes, it is winter blend time for us in Virginia as well, so we get different performance this time of year.

Owner's manual for my '97 D1 lists fuel capacity as 23.4 US Gals, but I generally wait until the low fuel indicator comes on to fill up, at which point it takes about 18 gallons or so. That tells me I technically have more than 5 gallons in reserve. My "observed" mileage knocking around town is 14 mpg, so I get a range of about 250 miles until the light comes on, but I could drive perhaps another 60 miles after the light illuminates before I'm in danger of walking . I say observed, because my speedo has a 4% error on the fast side (calibrated against GPS at 65 mph), so I assume the odometer is fast as well which would lower my actual fuel economy (don't remember calibrating the odometer). My D1 is completely stock right down to the brand and size of tires, which in conjunction with tire pressure, can make a big difference on a vehicle like the Discovery.

ive been averaging 13.5 mpg while driving pretty hard with 33s, a roof rack, heavy bumper with winch, and lots of other toys. i usually fill up between 225-250.

The EPA does mandate ethanol in congested areas all year round .
In some places its just winter, but I'm not sure if that is a
EPA mandate.