Thread: gas mileage

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  1. #421 Re: gas mileage 
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    if he has a '97 then its an 18 gallon, mine is .
    1997 Red GTP 182000 miles stock
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  2. #422 Re: gas mileage 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Either way, these cars suck fuel if you are doing short trips with many stop lights and traffic.

    My daily commute is 2.5 miles each way to work, I'm lucky to get 16-18 mpgs in the summer and 11 in the winter. I have done all maintence to the car and I'm modded.

    So either he drives really short trips daily or his car needs a tune up bad.

    SMGPFC Member #1
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  3. #423 Re: gas mileage 
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    I agree,any city driving kills the mpg. If I just do my daily commute of 25 miles each way, 21 of it highway.
    I can keep it at 25- 26 mpg, drive a little in town and it drops to 22 - 23 total.
    Which means the city part is proly 17 mpg or so.
    1997 Red GTP 182000 miles stock
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  4. #424 Re: gas mileage 
    SE Level Member Lil larry's Avatar
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    yeh i got a 97 sometimes it feels as if something is holding it back. thought maybe the ebcm is doing it hopfuly i can get the thing fixed so i cant refer to it as my problems if that isnt it im just going to buy a whole new brake system
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  5. #425 Re: gas mileage 
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    I get between 16-22 city 25-32 on 91 octane in my 2004 gtp comp g. I have a light foot and usually only do about 65 on the highway..
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  6. #426 Re: gas mileage 
    GTX Level Member AKGTP19's Avatar
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    I drive city most if the time and whenever I start It up and go the mpg just keeps going down till it gets to like 16.5 and I don't go above 3k rpms... I reset it twice and it just kept going down each time I would park and get back in lster
    1998 GTP Loudmouth
    1999 GTP, Borla Cat Back.....SOLD
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  7. #427 Re: gas mileage 
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    i'm getting like 13 in the city. Tally is the worst, Hilly + bad roads and a 2 mile commute.

    probably around 25 on the hwy
    Last edited by DoubleBlown; 08-14-2013 at 02:45 PM.
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  8. #428 Re: gas mileage 
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    I have a 2004 Comp G and im getting about 21-22 MPG, little over 300 miles from full tank when range says 350-380.
    I drive 60 miles each way to work and i'd say 95% of it is highway, 55-70 mph most of the way with very little stop and go.
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  9. #429 Re: gas mileage 
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    If my Gauge worked then I can be more accurate but after the tune up my 00gp gets about 20-23 mpg on highway and about 18 in city that's with a light foot on green instead of mashing to get going. But the way I gfigured it with my gauge being off is by filling and then running dry, calculated the miles traveled by the size of tank with the price of gas thrown in there.
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  10. #430 Re: gas mileage 
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    Huh ! What does size of tank and price of gas have anything to do with it.
    Fill the tank until the pump shuts off , stop don't add any more. Drive 250 miles or so.
    Fill up again until first click off. Look at your odometer , look at the pump for gallons pumped.
    Divide miles by gallons. You get MPG.
    1997 Red GTP 182000 miles stock
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  11. #431 Re: gas mileage 
    GrandPrix Junkie machinegunsquid's Avatar
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    Averaging around 45mpg city, and around 60 on the highways


    Cause '13 636 is where it's at.

    "**** bills. You can live in your car but you can't race your house" -dsmuts
    Want her to stop when she's not looking karate chop her in her crotch that should quiet her for a bit or at the very least put a smile on your face -REDCOMPG
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  12. #432 Re: gas mileage 
    SE Level Member JimSWylie's Avatar
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    I drive 200 miles a day, about 30 miles of it through towns, about 30 miles up and down a 4,000 ft elevation pass, the rest freeway running 69 to 80 mph while getting about 26 mpg on a heavy foot and about 29 soft footed. all stock with the exception of a cai, according to the dic.
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  13. #433 Re: gas mileage 
    GTP Level Member Oxfire's Avatar
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    Got it to do 36.4MPG on the highway with a stripped 4th gear.

    WITH 3.29s.
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  14. #434 Re: gas mileage 
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    I get right around 20 doing all city with some heavy runs. On the highway click the cruise at 75 and I get between 30-32
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  15. #435 Re: gas mileage 
    SE Level Member stockGTforlife's Avatar
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    im a bone stock 97 gt, and i get some terrible gas, or so it seems. i have to fill up around 210-230 miles in the summer. but, i havent had a tune up since god knows when...
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  16. #436 Re: gas mileage 
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    Quote Originally Posted by kingspadeshan View Post
    I have a 2004 Comp G and im getting about 21-22 MPG, little over 300 miles from full tank when range says 350-380.
    I drive 60 miles each way to work and i'd say 95% of it is highway, 55-70 mph most of the way with very little stop and go.
    UPDATE
    I changed by driving style and use only Mobile gas instead of Arco and now I'm getting 26 mpg and 390 miles on this last tank of fuel.





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  17. #437 Re: gas mileage 
    I live here. 02NavyBlue's Avatar
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    Got 250 miles out of this tank, filled shortly after the light came on. I'm getting 17.14 MPG, this is the last time I will be in the 17's until next summer, I guarantee it. Winter is fast approaching.
    2006 Grand Prix GT S/C 109k - Modded Transgo Shift Kit, Gutted Airbox, Dash Cam, and Inlays. Retros soon to come.
    2002 Grand Prix GT N/A 127k - Same as 06 Plus: Trans Cooler, DIY Aux Input, LED lighting, Suspension Upgrades, Tint, Retrofits.
    Sold.
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  18. #438 Re: gas mileage 
    GTX Level Member Nates94's Avatar
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    Just finished up my first tank on the GTP. 22.18mpg not bad. Could of done better but my foot was burried in that pedal a couple of times.

    I can take it easy now that I have heard the whine. Until I get an intake.

    1991 Grand prix GT
    1994 Cutlass Supreme
    2000 Grand prix GTP
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  19. #439 Re: gas mileage 
    SE Level Member Crispykit's Avatar
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    Just did another average for last 6 months (warm months here in Ontario) and 23.7 MPG is the number. This is a 2001 GT with the 3.8L non-turbocharged engine driven 70% City and 30% highway. I don't drive the car hard but not slowly either. Biggest change that I think improved the economy was the K&N (K&N 57 Series FIPK Air Intake) and the U-Bend delete but hard to tell as was doing bunch of mods to the intake and exhaust over that period. Planning a short highway jaunt and will try to get a highway mileage reading.
    Crispykit 2001 GP GT
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  20. #440 Re: gas mileage 
    I live here. 02NavyBlue's Avatar
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    Went 237 miles on the last tank, 90% city. Put 14.9 gallons in yesterday at $3.09 a gallon. I got 15.9 mpg on that last tank, it's getting lower as it gets colder. Went from 17 to 15.9, I predict the next fill up will be around 14.5 mpg.
    2006 Grand Prix GT S/C 109k - Modded Transgo Shift Kit, Gutted Airbox, Dash Cam, and Inlays. Retros soon to come.
    2002 Grand Prix GT N/A 127k - Same as 06 Plus: Trans Cooler, DIY Aux Input, LED lighting, Suspension Upgrades, Tint, Retrofits.
    Sold.
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