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Thread: gas mileage

  1. #41
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    Default Re: gas mileage

    502 out of a full tank 3800 Naturally Asperated GT

  2. #42
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    Default Re: gas mileage

    Quote Originally Posted by gpgt98 View Post
    Just wondering what the average mileage is with everyone's cars? My dic is 21.7-22mpg city driving and driving with a light foot.. and how many miles do u guys get out of a full tank? I get around 310 miles, but when I fill up, my range is around 375-380.
    502 1997 gt 3800 naturally asperated

  3. #43
    Donating Users danielle15's Avatar
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    Default Re: gas mileage

    Quote Originally Posted by Logan541 View Post
    502 out of a full tank 3800 Naturally Asperated GT
    How in the heck do you pull 502 out of a full tank...

  4. #44
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    Default Re: gas mileage

    30 mpg.

    it can be done considering the stock rating was 27 highway.

  5. #45
    The mod from over yonder TheOtherNick's Avatar
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    Default Re: gas mileage

    I have hit 500 on a full tank driving to florida on 91.
    01 gtp-big cam e85 dd 78dodge- guzzling fuel 05 cummins- rollin coal
    SMGPFC Two Nipple General

  6. #46
    GTP Level Member dmahlikGT's Avatar
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    Default Re: gas mileage

    Quote Originally Posted by matt5112 View Post
    30 mpg.

    it can be done considering the stock rating was 27 highway.
    I thought stock rating was 29 highway?.
    04 GTP-3.6 pulley, custom tuned, Intake, headers,thrush exhaust, al104 plugs, 180* stat, shift kit, flipped mounts


  7. #47
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    Default Re: gas mileage

    Quote Originally Posted by dmahlikGT View Post
    I thought stock rating was 29 highway?.
    Here's a list I compiled. Depends on what year you're referring to.

    97 SE 20 and 29, GT 19 and 30, GTP 18 and 28
    98 SE 20 and 29, GT 19 and 30, GTP 18 and 28
    99 SE 20 and 29, GT 19 and 30, GTP 18 and 28
    00 SE 20 and 30, GT 20 and 29, GTP 18 and 28
    01 SE 20 and 29, GT 20 and 30, GTP 18 and 28
    02 SE 20 and 29, GT 19 and 29, GTP 18 and 28
    03 base 20 and 29, GT 19 and 29, GTP 18 and 28
    04 GT1 20 and 30, GT2 20 and 30, GTP 18 and 28
    05 base 20 and 30, GT 20 and 30, GTP 18 and 27, GXP 18 and 27
    06 base 20 and 30, GT 19 and 28, GXP 18 and 27
    07 base 20 and 30, GT 19 and 28, GXP 18 and 27
    08 base 18 and 28, GXP 16 and 25

    08 must of had some strong emission changes.
    SMGPFC #0330 - 3.25, Intercooled, Custom Tune, 1.84rr, LS6 Springs, roller timing chain, SLP Headers, Borla Exhaust, built Trans, B&M Trans Cooler, home cut poly uppers, gapless rings, N* TB, Ported heads.
    Soontocome: CAM?, Custom modified M112, home poured Poly Engine and Trans mounts

  8. #48
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    Default Re: gas mileage

    No, they've revised it to be more "accurate".

    Yet now i see the focus claiming 59 MPG when ONLY the hybrid gets that.... and thats highway.

    And no, you can't buy the hybrid in canada yet.

    closest you can get is the titanium which is 45 mpg highway.

  9. #49
    SE Level Member ChrisW2k5's Avatar
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    Default Re: gas mileage

    i do a LOT of highway driving. at 70 mph i get about 23mpg, at 80 i get 20ish actual. According to the DIC I get 26@70 and 21@80 It also says I use 40 liters of fuel (yes im canadian and dont want to convert liters to gallons) when I actually use 46 litres. I've never had it even close to accurate to being how much I've used. Does anyone else have that problem or are you getting a fairly acturate number on your fuel used?

  10. #50
    GT Level Member RegalGS98s's Avatar
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    Default Re: gas mileage

    Quote Originally Posted by ChrisW2k5 View Post
    i do a LOT of highway driving. at 70 mph i get about 23mpg, at 80 i get 20ish actual. According to the DIC I get 26@70 and 21@80 It also says I use 40 liters of fuel (yes im canadian and dont want to convert liters to gallons) when I actually use 46 litres. I've never had it even close to accurate to being how much I've used. Does anyone else have that problem or are you getting a fairly acturate number on your fuel used?
    My Regal used to be dead on. After I got a custom tune though, the actual has been about 2 mpg less than what the DIC says.
    SMGPFC #0330 - 3.25, Intercooled, Custom Tune, 1.84rr, LS6 Springs, roller timing chain, SLP Headers, Borla Exhaust, built Trans, B&M Trans Cooler, home cut poly uppers, gapless rings, N* TB, Ported heads.
    Soontocome: CAM?, Custom modified M112, home poured Poly Engine and Trans mounts

  11. #51
    Donating Users fireprix's Avatar
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    Default Re: gas mileage

    I can't keep my damn foot off the gas, but I did get 27+ going from n. cali to s. cali mostly doing between 75 and 95mph the whole way, normally getting a combined 23 mpg or so. i know i could stretch it big time if i didn't have a lead foot.
    2004 GP GT2 -- Sold
    2009 G8 GT -- Moar Power

  12. #52
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    Default Re: gas mileage

    I can never get more than 22 mph average. Weather or not I do a lot of highway driving.
    99 GP GT- Bosal mufflers, Custom intake.

  13. #53
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    Default Re: gas mileage

    428km trip, 24.14 mpg according to my iphone app. Mostly highway driving but a bunch was on windy mountain-ish roads. Long 3-4k pulls up steep hills. Not bad considering I just bought the car and haven't done anything but put a little bottle of Lucas in my gas tank. I bet I can get it to do better.


    3.1 motor with 243k kilometers (151k miles) on it.
    Last edited by 3100sfi; 07-13-2011 at 12:55 AM.
    1996 Pontiac Grand Prix SE coupe - white - stock until something breaks

  14. #54
    SE Level Member ChrisW2k5's Avatar
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    Default Re: gas mileage

    Quote Originally Posted by RegalGS98s View Post
    My Regal used to be dead on. After I got a custom tune though, the actual has been about 2 mpg less than what the DIC says.

    So what would cause my DIC to be so far off from actual then?

  15. #55
    GT Level Member SleeperGS's Avatar
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    Default Re: gas mileage

    I get about 330ish to a tank. I average 24.9 driving with my foot more into the accelerator. If I drive respectfully, I can get 29's to the gallon. My regal has a smaller tank I think than thr GP's and def only gets 93 octane. Wish I could find 94 octane here in Cincy.

  16. #56
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    Default Re: gas mileage

    I get like 16mpg city...I would be upset, but driving a V8 is kinda worth it
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  17. #57
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    Default Re: gas mileage

    23.5 city like clockwork, my 97 DIC is also dead on most all of the time..... 28-29 highway according to DIC only.

  18. #58
    GXP Level Member z3r0's Avatar
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    Default Re: gas mileage

    my 97 gtp gets 26 highway

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  19. #59
    SE Level Member Paramedic's Avatar
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    Default Re: gas mileage

    715kms, 25 - 26 Highway

    2000 GP GT
    You call, we haul.

  20. #60
    GT Level Member Cdazzle90's Avatar
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    Default Re: gas mileage

    i get like 200 miles on a full tank lol if im lucky.

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