When I bought my 2.8 A6 Avant in 2003,we weregetting 14 mpg consistant on a 1hr drive each way on the highway at about 70-90 mph variable.
We get better mileage in the winter here due to more dense air and lower humidity when it gets cold.(Tampa,FL)3 years later and now at 140,000 miles we are getting 19 mpg regularly under same general conditions and no changes to the car except tires and maintenance.

 

I can get as low as 4-5mpg city if I want to. And I can keep it down. If I take it a little easier I normally get 10-12mpg City. I Can however easily get 20mpg City and 28mpg Highway, but that requires me actually using tip and shifting into higher gears as soon as I can and rolling in neutral when I'm coming up to a red... Oh and it is completely stock. Getting chipped soon though..

 

bringin back an old topic here but does this sound normal.. .heres the factors...
on a 19 mile trip all highway, i averaged 22.5 mpg in my 98 a6 tip (2.8 quattro), 93 octane fuel, new k&n air filter, fresh mobil1 synthetic, and filter. fully inflated 235/35/19 tires.. and windows up, no a/c. just headlights on. what do you think, btw, humidity was extremely high (fog/ thunderstorms on the way)and 75 degrees. thanks

 

i get around 15-18 in town as well don't do any highway driving always stop....and go

 

2006 3.2 A6
Just to see what happens if I completely elliminate fast accelleration, check out these number over 2 months:
24 mpg around town
29-30 mpg highway 70-75mph (and that's with the windows DOWN!)

I suspect those mpg's in the teens are more the result of heavy footed off-the mark drivers.

 

i admit my foot does get a little hard to hold up sometimes......

 

I get very good gas milage in my 2.8.... But driving my Saab around, I get bad gas milage, since I play with the boost to much[:@] $$$$$$ [:@]

 

i get 19 with my 2.8 1998. i am a soft driver though

 

I get like 22 mpg city/highway mix on my 04 S-line, I drive in the sport gear all the time.

 

I got close to 24 mpg on my last tank, mostly highway miles. And that is with me driving fairly agressively AND a bad air temp sensor. Pretty decent, I can't complain!