I have a 2002 Camaro SS A4. I have done a few mods to it since purchased in 2002.

Stock the car got Hwy 24-26.7 MPG 3.23 gears...city 18 MPG

H/C/I/stall 3600 390rwhp the car got Hwy 23-24 MPG 3.23 gears; surprising...city 16 MPG

408ci 500rwhp with 3.42 Moser rear/3600 stall/built trans Hwy 20-22.6 MPG...very surprising...city 10-11 MPG

These were calculated hwy/city drives of more than one tank of gas.

What kind of gas mileage are you guys getting? Do you know your stock vs modified mileage? A4s vs manuals? I would prefer calculated mileage not what your electronic sensor is telling you (corvettes). I know the one in my wife's car is usually off 2-3 MPG when calculated.

I am not concerned about my gas mileage but this is more curiosity than anything...who knows one day it could be a study...

 

stock 98Z A4 3.23s'-24.5 mpg based on 6 trips from Cleveland to Orlando at freeway legal speeds;same but with 4.56s'-21.5 mpg for 3 trips of the same.
city mpg is too 'right foot dependent' and you can't have fun if you're city driving for mpgs'.

 

My car has always gotten crappy MPG: 22 combined, mostly highway. With 2.73s. Not sure why.

 

My stk 99 WS6 with M6 got 29.4 mpg with wife and luggage driving at 68 mph. My Vette in signature get 26 mpg the same way as WS6.

 

My '98 SS A4 (mods in sig) w/ 3.23's averages around 20 combined. Best I ever got was 23 and that was pretty much highway, except for like 5 miles getting from my house to the highway. Not sure what it averages 'just around town'. I've never only driven it just around town so I can't speculate on that. It'll probably be getting worse now though since it's not my daily anymore and we all know what that means...

 

I hardly ever drive on the highway but I get 15mpg in the city with my mods. When the car was stock I got the same mileage so I can't complain. Many G8 GT owners get 25+ mpg on the highway, so the 6-speed auto and DOD make a big difference.

 

Stock my A4 2.73 avgd around 18-19 when I got it, worst I got stock was 14.

Most I ever managed to get on a hwy trip was 23

Now I get 15-17 with a lot of highway, with bolt ons.

 

The C4 ran up to 30mpg on highway trips and about 20ish city. (love that thing for a DD)
The cammed LQ4 ran up to about 15/23.
The LS1 Formy with bolt ons gets about 17/23.

 

I have a car that gets good mpg. The TA? I didn't buy for a good mpg car lol but i'd say 20's

 

I only get 11 mpg, only went through one tank this year though.

 

Mine is always mixed driving right around 22 mpg. I am a full bolt on car. Seems like whether I drive like Grandma or like I stole it the mileage never changes. Always filling up right after 285 miles on the tank.

 

Best I ever got on highway was 27.2.
Around town it's usually in the mid teens.
Mods in sig.

 

i have never done the math but i do reset the miles wen i get so id guess i get high teens low 20's.
but its a sunday car so when im out im usually driving "spirited"

 

in my TA when it just had lid and catback i avgd 19mpg city, 30mpg highway. loved it. havent driven it enough since the mods to know what it gets now though.

 

When i just had boltons my car was 15-20 city, 25-28 highway. After the cam it's avg is about 18 city and 30.5 highway! I love having the 6 speed! Moser 9' 3.90's built T56, boltons and cam!

Vince

 

2001 z28 m6, big cam, dana s60 w/4.10

cruising i still get around 27mpg...
city, aggressive driving 13-16mpg
heaving on the gas or racing, around 9mpg

 

2000 Z28 M6, LS6 intake, lid, dumped one chamber; basically stock in other words. 110K miles and still on stock plugs and fuel filter so it might have done a little better if I would replace them


Drove from Pigeon Forge, TN to Ohio and got 29.5 mpg, driving between 70-75 mph the entire way


It usually get between 18-20 in the city

 

Just got the car a few days ago and have only ran a tank of gas (mostly play, new car fun ) through it. 26.5, right around 370 miles before the gas light came on. LOTS of playing on that tank of gas. 2002 M6 Firebird.

 

Getting about 14 mpg around town. Mods in SiGA\.

 

200-240 a tank highway...not sure on city