Mileage per tank??

Hi,
I recently changed my BMW 330ci for an A4 Avant 1.9TDi, after a few short months I've decided I don't get on with diesel engines so I've now swapped
this for an A4 Avant 3.0 Quattro Sport.
Question is how many miles should I aim to get from a tank of fuel, obviously it depends on driving style, type of roads etc, etc... I'm looking at an *average*...
BMW 330ci would do 350 miles on 61 litres A4 1.9 TDi would do 520-550 miles on 65 litres A4 3.0 Quattro Sport does 260-280 on 65 litres
It just doesn't add up to me, I don't know if the figures look right or not??
I only ever used Shell Optimax (98 RON) in the BMW from new, I have also started using Optimax in the A4 but even though it's a new car it's an ex-demo so has been driven for 4,000 miles. I thought perhaps the car might take a few tanks to get used to the higher grade fuel or something?
Any advice?!?!?
Thanks!
Daz (Change (AT) for @ if replying!!)
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On Fri, 9 Jul 2004 18:40:54 +0100, "Daz N" <darren(AT)clara.co.uk> wrote:

The Quattro weighs a ton

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"Daz N" <darren(AT)clara.co.uk> wrote in message

If you only get 500 miles from a 1.9td you are doing something wrong. I could get over 600 without trying hard. Also, a 3.0L Q is very heavy & the drag of the 4wd does use a lot more fuel.
I now have a 3.1l TDi Isuzu Trooper that is huge & does about 30mpg!
Go back to diesel matey!
Nige
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I believe that Audi (US) recommends Premium fuel for all their cars although the owners manuals on the A4-1.8Tq and the A6-2.7Tq state that any gasoline over 87 (R+M/2) can be used with decreased performance.

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My 2 cents...
"00 A6 2.7T gets 425 miles per tank average. Best was 24.2 mpg on a 300 mile road trip with average speed of 65 mph according to on-board computer which included rush hour traffic past Toronto. I use 94 octane (premium grade around here).
G
"Daz N" <darren(AT)clara.co.uk> wrote in message

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On Fri, 9 Jul 2004, it was written:

Daz,
Your consumption for the 3.0 Quattro seems remarkably high, unless you are doing only very short journeys. I have a 2002 A4 3.0 Quattro, and on 65 litres I get in the region of 430 miles. I am in upstate New York, where 65 litres is 17.1 U.S. gallons, and my average over the last 20,000 miles has been 25.2 miles per U.S. gallon (30.1 miles per imperial gallon). So, 17.1 * 25.2 = 430.9 miles.
Steve
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"Daz N" <darren(AT)clara.co.uk> wrote in message

Assuming you don't drive till the last drop but fill up around 60 liters, that gives you about 20.5 mpg (UK).
If my A4 1.8TQ manual can get about 23-24 mpg (UK) around town, then I'd expect your 3.0 to be just where you are. As others pointed out, it's heavy, and quattro also accounts for additional gas consumption. But if this is what you get while leisurely highway driving, then something ain't right.
Cheers,
Pete
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Daz,
I think you have a serious problem and / or you have a very heavy foot. My 01 A4-1.8Tq averaged 24.5 miles per gallon while I had it. My present A6 2.7Tq averages about 21.5 mpg in general driving and 26.5 mpg on a recent vacation highway trip with average speeds of 80-85 mph.
That mileage is using premium fuel. Mileage and performance decrease with octane. I think the increased mileage alone may justify the premium cost. Perhaps a couple tanks with the addition of Chevron's "Techron" fuel injector cleaner might help. Make sure you get the right stuff, they also make a cleaner "with Techron" that is half the cost and not very effective.

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