the trip computer said i used to get between 14-17 (obviously depending on how I drive) with my 2.8 30v but i put in a new timing new serp belt new valve and cam seal gasket and a new intake and the computer says im getting between 22-24 now luckly I had a warranty for everything but the intake and timing so an extra $150 got me close to 10 mpg more (all city driving)

 

im always between 325 and 425... my best is 463 before i filled up (95% interstate highway that trip though)

im 1.8t with speedtuning chip and exhaust

 

For the best mpg calculation I fill up the tank until it clicks and then set the trip counter to zero. The next time I get gas I do the same thing and then look at the exact amount of gallons on the pump (including past the decimal point). Last, I divide the amount of miles by the amount of gas.

Mine's a 1.8T with just a K&N filter. I usually get between 30-32 mpg (80% hwy, 20% city)

 

Seems like people have a hard time doing a simple mpg calculation. But i get 22-23 for city. Highway is around 27-28 but that is usually doing more than the recommended speeds

 

yeah i think i got 300 out of going to the beach on all 16 gallons thats ok but my city is always around 17 to 18 its ok

 

the 2.8 is great on the highway, and alright in the city. i drove from detroit to phoenix with my avant completely filled (seats down and everything) and managed 26 mpg. for the cities id say i get low 20s, its just hard to not drive fast in the city.

 

Damn, when I moved from NY to Kansas, I only averaged about 26-27 MPG highway, (using the miles divided by actual fuel consumption method). Of course, cruising at 3700-4000 RPM probably isn't the best for saving fuel.

 

my gas mileage is crap.

i use 93. with a 93oct tune at 18psi. getting about 210miles per full tank of gas sooo.... about 14mpg

 

Recently changed out both front O2 sensors on my car. Used to get 320 to a tank highway if I was luck and like 260 in the city. Now I've taken two trips and I hit 320 and still have a 1/4 tank left.

I did the math and it's like 27.7 if I recall. This is in a tiptronic S4. Go figure. I can't believe I'm getting better mileage than most of the 2.8 owners. Wow! I thought about getting a 2.8 or 1.8t as a winter/daily driver. Guess i'll go 1.8t since they can get 30+ mpg on the highway.

 

yeah the 2.8 is a slow heavy gas guzzler