Just got home Saturday evening from a 3600 mile trip and got around 28mpg overall.

 

On my '03 3.0 Auto I consistently get 22-23mpg. That's over the course of the 9,000 mi I put on since I bought the car 8 months ago. I have a 25m commute on a parkway, and most days its pretty jammy. When its clear (rarely), I cruise at 65-70mph, but the computer shows an average speed of 35mph.

My last car was a faithful old rustbucket '94 Corolla wagon (i put 175,000 mi on that one) which had a 1.8L engine and only ever managed to get about 28mpg.

I was resigned to a "cost of driving" penalty when I got the kitty, and I have to say I was very pleasantly surprised at how well she does on the gas mileage.

I loves my black cat.

 

Sorry I made a mistake, I usually shift at around 1500 revs to 2000 revs, occasionally I rev to 3000 revs like when I'm trying to overtake etc and still getting average 20mpg in town on a 2.0d!

 

Guy from NL on www.x-type.org.uk has done 211000 miles in his X type

 

Well I just filled up me second tank in this car. I got 18.5mpg all city driving, with my CEL on for a vacuum leak in the PCV. The data center said I was getting 18.7mpg. I'm VERY surprised how accurate the data center is, thats awesome!
But I'm not very pleased w/ the mileage. I'm hoping once I fix my CEL issue my mileage will go up by 2mpg or so (thats what it would take to please me in city driving)

 

Hi,
I have a 2000 S-Type 3.0L V6 that I average 27-28mpg per tankfill in mostly urban driving. On long trips with mostly freeway runs I have had tankfill trip averages of over 36 mpg. These are actual calculations ( I keep a fuel economy log of every fillup), I find the trip computer to be slightly optimistic at about +1mpg compared to the actual calculated MPG. I could travel 500 miles on a single tankfill if I choose to run it that close to empty.

While I don't have an X-type, the engine is the same with some differences in curb weight, size, and AWD vs RWD. I suspect that a gas-engined X-type could achieve similar or perhaps better MPG than I have achieved with my S-Type.

I get the better fuel economy through
1)fuel efficient driving: moderate acceleration, maiintaining momentum , avoiding braking, coasting/anticpating stoplights, keeping speed to the posted limits and avoiding idling, etc.
2) increasing tire pressure to 42 psi all around
3) aerodynamic modifications to reduce air drag : grille block, passenger mirror removal, front wheel deflectors
4) meticulous vehicle maintenance

If you are interested check out my post titled " 36 MPG roadtrip to Vegas" for more info .
Jags can be very fuel efficient if you work at it.
Best wishes and enjoy your Jag, they are great cars.

 

27-28mpg urban on a 3.0 petrol..? Damn thats superb! I'm getting 21mpg average (calculated) not through computer! And I have a 2.0 Diesel which is advertised 37mpg urban. However I dont drive very efficiently but how is it 16mpg minus from the advertised..? I'm not flooring it 24/7!

 

VMV you make good points, however I do not think the X-type 3.0 could get better mpg than a suitably equipped S-type simply due to the drivetrain efficiency losses that come with AWD.

 

ya all wheel drive induces more losses in both hp and economy... but that awd is AWESOME to have on tap when things get hairy!!

 

I have achieved 21.5 mpg over 5500 miles with my 05 X-Type Sportwagon ( now at 44k miles). I do not do jackrabbit starts and rarely go over 75 on the highway. The car is heavy, it is dragging out the AWD mechanicals and my belief is that the transmission has an awkward shift pattern. In 5th gear below 2,000 rpm's the engine feels like it is logging It does not hold in gear long enough without a certain delicate pressure and it is often searching back and forth for the "correct" gear. Sometimes I manually shift up through the gears in order to stay in what I think is the sweet zone. I have changed the transfer case and diff fluids (royal purple).
I have my mpg results posted at fuelly.com. I invite other X-Type owners to post there so that we can easily see a compillation and not have to renew the "What is your M.P.G." every few months.
My son drives an 04 XJ with 4.2 V8 and generally gets better mileage. The vehicle, although larger and clearly "more" Jag, weighs about the same (lots of aluminum), has a 6 speed, and the engine does not have to work as hard. I would guess that a V8 S-Type would get better miles than a 3.0 with similar driving style.

 

I need to get my PCV fixed.. 18.2mpg city driving isn't cutting it!!

 

The city mileage that you are getting is about right for this car. At best it is rated at 18 city/24 highway. This is not an econobox by any stretch.

 

ya I noticed thats what they are rated for, but judging by everybody elses city mileage I seem to be subpar. Which is irritating.

 

You gotta remember, it's winter out and you live in Buffalo. Could explain the difference right there. Colder weather really drops the mpg. And are you using premium gas? If not, switch to it and compare. That would help as well. I don't think your mpg is necessarily that far off from the "norm".

 

X2 ^

Seasonal fuel mixes can also have an effect on observed mpg. At least in my experience.

 

Yes I'm using 93 octane, and no I'm not in buffalo yet. I'm in n carolina until tuesday. So this is NC mileage where the weather has been pretty decent. My computer tripper says I'm getting about 19mpg right now.. so maybe I just have to fine tune my driving with this car? Plus fix my pcv leak. We'll see what happens I suppose

 

You are close to normal mpg wise. PVC might help a tad. You hit the button with driving style. Don't worry so much about finding the most efficient rpm (like we talked about in the other thread- the more I thought about it the less sense it made to even try) and instead just focus on throttle modulation if you really want to go after fuel economy.

Of course make sure your tires and inflated properly, I tend to have them around 36psi. Each X seems to have its own sweet spot for tire psi.

Reset your trip B and compare it to your trip A after you fix your PVC eh? Might be fun to compare.

But really, just enjoy the car for what it is. After you've had it for a few years you won't even really look at the mpg's.

 

-MILLAGE IN THE WINTER (COLD ) AND SUMMER (HOT) IS NOT THE SAME-
mine is now(dec.) 22-24mpg, but in the summer is 29-31mpg on hghw.

 

Damnnnn you lost that much due to the cold???

 

i got mine in the summer, and have had 22-24mpg consistently even now, running on 91+ octane.