My 98 Formula A4, stock except lid and Magnaflow exhaust gets 20-22 MPG mixed driving(without babying it) and 26-28 MPG highway (75-80 MPH).

 

I had the wot tuning done at The Horsepower House in Bowling Green KY. As for the drivability tuning, a member on here did that. I'm looking into my own software for this up-coming year though.

Thanks for the compliment

 

Thanks Brian I just sent you a pm.

 

I just filled up and got exactly 10 on all city driving. I certainly don't drive calm but I didn't think I got that bad!

 

i get 15-20 in the city depending on how heavy my foot is, and about 29 on hwy goin the speed limit

 

Just filled mine up and I got 120 miles on this tank (14.8 gal at fill-up). That works out to just over 8 mpg. Not too bad.

Oh I didn't mention that that was all open track miles

I get about 200 miles in town if I'm nice to it and about 400 highway.

William

 

on my recent drive up to seattle i got 27.5 mpg in an auto. only "performance" mod is a CAI. usually in town i average about 21... unless it's winter... then it drops to about 16 or 17 - not really sure why, unless it's the cold dense air and it's getting more fuel mixed in... i don't know. i wish it wouldn't drop so much. (and yes, i have changed my fuel filter and spark plugs and wires within the last year)

 

I only check mileage when going on a road trip. Don't know what it does day-to-day. Last road trip was 150 miles up 2 lane Hwy 101 to Shelton, Wa to see Ron White last month. Returned 150 miles down I-5, and got 23 MPG for the trip. Driving how I want, which is with my feet, and with you in the rear view mirror. Engine is still basic stock.

 

100% of my driving is local roads & heavy traffic. Welcome to Honolulu.
Well I average 8.5 miles per gallon of Hawaii's best 91 octane, 10% ethanol gasoline. I'll have to say I have a heavy foot. There are a lot of turbo ricers here that are just lining up to be slain by my GTO.

 

Averages out to be 19-20. Not bad I'd say for a mix of city and highway driving

 

Highway

Low 24 Avg 27.5 High 30. Yes 30.
Took some work and luck to hit 30. Tyres. Taped off grill. Ran the car lean. Drove slow. No AC. Other small stuff. I was going to try for 31 but got distracted.

City
Don't measure and I am sure it's bad!

 

I haven't had the pleasure of driving my car since I parked it fall of '06 because I'm deployed, but, I was getting 21-23 mpg avg. on a tank driving to and from work. It's mixed city and highway, but always during rush hour. I get that mileage without driving so nice. So, I don't think it's too bad.

Never really run it on a long road trip. I hope to when I get back. Oh, and it's a '00 M6 Z26, K&N, free ram air, TB bypass, P&P MAF, TR56 plugs, but otherwise stock.

 

18 city 26 hwy 02 WS6 m6 w/3.73s lid and catback

 

430rwhp/403rwtq 4.10 gears 6 speed 80mph @ 2k rpm. ave 20 mpg mixed driving. I can drive 2 hours to the track and beat the **** out of it and ave 23-24mpg on the trip.

 

22-24 on the highway. ~16 around town

 

before the non lock up stall, I was getting 31-33 mpg every time I was on a road trip (which I did weekly then). I check my MPG every time I fill up and I keep track of it, as well as how much gas went in at what price and at how many miles are on the car. Now, with the non lockup stall, I'm gettin 26 on the same trip. (2.73 gears)

 

Highway: right around 28
Don't really do much "city" driving, but driving around town I still get close to 20.

I drive like a puss

 

When the car was new, hiway average way in th 27-28 range. I got 29-30 a few times on flat roads, no wind conditions. Now hiway average is about 22, but I think that may have something to do with the 10% ethanol mix fuels around here. Could also be the filthy air filter! :-)
Could also be time to replace the o2 sensors. They are original and the car has 170,000 miles on it now.
Overall average for mixed driving is 19-20, depending on circumstances. Obviously, when I'm out playing, the MPG goes down, but I've never checked it then so can't say how much.

 

16 with mixed with a little racing

 

now after I put my lid on, I am averaging 17-18 mixed driving. I think I need to do a TB/intake/LT's/exhaust now. Probably gears too?