drago1217

iTrader: (6)

I gett about 18

The Postman

iTrader: (44)

23mpg with a 3600 Yank and 3.73 gears...full bolt-ons..no tune.

i average about 340-360 to a tank and only put in about 15 gallons every time i fill up...93 octane only.

Morbid

iTrader: (34)

I never kept tabs on what gas mileage any of my F-Bodies got. I didn't buy the car to be good on gas, I just fill it up when it needs it.

FlashWS6

iTrader: (18)

whats up fool! where the f*ck have u been?

Shackleford

iTrader: (12)

I'm not sure how this is possible with your setup. Has your odometer been adjusted for the gears? Sorry. The 23 mpg just seems a bit high.

mikef85

iTrader: (3)

Brian rs/ss......your sig made me laugh

I haven't done any actual numbers, but the computer readout is 15-16 in town, 25 on the highway

Dave_the_SS

iTrader: (27)

i was thinking the same thing.... cause i cant even pull over 300 miles to a tank of gas and im stock. max i get per tank is 260ish

zamora7

iTrader: (4)

I get 32mpg at a steady 80mph. Average is about 22mpg, 60% highway.

Footlead

iTrader: (18)

02 SS Bone Stock with 3.23 gears got 18-19 in town and 23-24 on highway.

After bolt-ons and tune 17-18 in town and 23-25 on highway. The light usually goes off at about 240 miles on a tank but I can push it to 260 or 270 on mostly town driving. It does alot better on the highway. It would probably be better if I kept my foot out of it but who can drive a 02 SS a full tank of fuel without gettin on her a few times. I cant do it.

Orr89rocz

iTrader: (13)

I got bolt ons, street tune, and 3200 stall on my daily driver and my last fill up was about 16.x mpg. I can get 15-17 with mixed driving with alittle highway alittle stop and go traffic and alittle WOT go pedal time. It used to get much more than that before the mods. I think my o2's may be bad. When I first got the car I swear it was doing 25mpg mixed. Then it started to do only 20 or so. Then the exhaust/intake mods came and stayed around 18-21 depending on how much highway i did. The converter really dropped the mileage.

Charlay

iTrader: (8)

Thats funny that you brought this up because I just did the whole MPG test on my T/A and was so dissapointed. I only got about 200 miles to my completely full tank. Divide that by the 12 gallons and its 16.66 ... I guess I was only shocked because I usually DD my civic but its getting fixed and I had to DD the T/A. I wasn't sure if this number was very good because I have seen the gap of ppl who get 20+ to us who are between 15 - 17. I plan on doing a complete tuneup though to see if it helps. I think im going to do the whole sea foam, change the plugs, fuel filter, oil, maybe change out transmissiom fluid etc .. and hopefully see a change!!

DMax32284

01 Trans Am, 6M, SLP longtubes, GM hot cam, few other things

29 on the HW @ about 75mph (I think I could push 31 if I went 80-85, but can't risk a ticket).

14-16 in the city.

Charlay

iTrader: (8)

I just finished another tank ... this time I was on it a little here and there and only could push out 175 miles to the tank. Bah .. that brings me down to about 14.58. Tuneup here we come!

Greed4Speed

iTrader: (7)

Of course you milage is bad if you're setting in your car idling with the ac running 5 days/week. My milage dropped considerably just from the difference in Tulsa traffic and Ft. W traffic.

I read about replacing cats, seafoaming, new plugs, replacing the fuel pump, and fuel filter in a quest for improved milage. But how old are your O2's? Other than a tune up and fresh filter, look there next.

Shackleford

iTrader: (12)

My oxygen sensors are only a few months old. I'm really suspecting my cats. The same situation happened in my old Z28 LT1. I noticed my gas mileage was sucking, and I found out before or after I bought a new cat that my old cat was bad. I think I just said what the heck and bought a hi-flow cat and when the shop put it on he said the old cat was shot.

Greed4Speed

iTrader: (7)

Just bust the ceramic out if them and have the rear O2's turned off.