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Gto Mpg

This is a discussion on Gto Mpg within the GTO forums, part of the Vehicle Specific category; just sold my Z28 yesterday and when (if) i get a job this summer I'll be looking to trade in ...

  1. #1
    Senior Member Shermanator86's Avatar
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    Gto Mpg

    just sold my Z28 yesterday and when (if) i get a job this summer I'll be looking to trade in my truck on a new to me car, it will be between a gto T/A or another camaro. so my question is what can i expect to get for mpg in an LS1 m6 and a LS2 m6?

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    My car is slightly modded and I get 17 in down and 24 hwy. It will all depend on how you drive it.

  3. #3
    Senior Member Shermanator86's Avatar
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    Quote Originally Posted by sappy96 View Post
    My car is slightly modded and I get 17 in down and 24 hwy. It will all depend on how you drive it.
    yeah i know it all depends, I usally take it easy driving around town just because I'm used to my truck and if i crack it over 1/4 throttle i get 11 mpg

  4. #4
    Senior Member slims00ls1z28's Avatar
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    2005 GTO M6 Black
    2000 Z28 A4 Red

    I'm pretty much stock and can't seem to drive "normal". and I average around 23. M6 LS2.

  5. #5
    Member TheJudge05's Avatar
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    Thumbs up GAS MILEAGE - GTO does very good...

    I have an 05 M6 LS2 GTO, I mainly drive hwy miles to work, about 80% hwy. The motor is stock except for an aftermarket air filter. When driving conservatively (I wanted to see how well I could do with gas consumption), I was able to achieve 28 mpg... If I drive aggressively I still get around 23 mpg, not bad for a 400 hp engine.

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    Senior Member Shermanator86's Avatar
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    thanks guys, does anyone know how the 5.7s do? I would think about the same but sometimes more power does help out with milage

  7. #7
    cutting and welding mark21742's Avatar
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    hugger orange
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    Quote Originally Posted by colesherman86 View Post
    thanks guys, does anyone know how the 5.7s do? I would think about the same but sometimes more power does help out with milage
    my 04/a4 GTO, lt's, dual exhaust, cai, and a tune i average 22mpg

  8. #8
    Member PatrizioD's Avatar
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    LS2 would probably get better mileage, since its a larger engine with more power pushing the same sized/weighing car. My 06 M6 can reach low 30's on the highway if CC is on. Even if i stomp the pedal to the floor in 5th at 70mph, the lowest it goes is 7.4mpg. It all depends on how you drive. Mines all stock btw

  9. #9
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    It also depends on location. Hills will kill gas mileage

  10. #10
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    I get 20 in town and 24-25 HWY in my 04 M6. Power doesn't have as much to do with it as driving style. I'm at 7000' ASL so I'm not putting down near the power.

  11. #11
    Member pmolina0436's Avatar
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    Anyone recomemnd performce for a 2004 GTO. I got a CAI and wires upgraded already?

  12. #12
    Member Spieldawg's Avatar
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    Quote Originally Posted by pmolina0436 View Post
    Anyone recomemnd performce for a 2004 GTO. I got a CAI and wires upgraded already?
    Make a new thread LOL.. this guy is wanting Gas Mileage Ideas.. not your misguided request for what ever it is your asking for.


    OP,

    I have a Mild cam, Long Tube Headers, CAI, and a few other goodies and I get 15 city 26.8 freeway. Cruising at 80.

    --Scott

  13. #13
    Member blk-ws6's Avatar
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    I have a bone stock 04 M6 and im getting 16 in the city.. i dont see why i dont get higher, i shift at like 1800-1900 rpms??

  14. #14
    cutting and welding mark21742's Avatar
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    hugger orange
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    Quote Originally Posted by blk-ws6 View Post
    I have a bone stock 04 M6 and im getting 16 in the city.. i dont see why i dont get higher, i shift at like 1800-1900 rpms??
    the more mild mods you do the better your mileage will be...cold airntake exhaust and tune gained me almost 10 mpg

  15. #15
    Senior Member qwkgto's Avatar
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    Phantom Black Metalic
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    the ls2 does pretty good on gas milage when i put the twins on it actually does better,too bad my silverado dont do this good and run like that.

  16. #16
    Senior Member Too Fast's Avatar
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    Quote Originally Posted by PatrizioD View Post
    LS2 would probably get better mileage, since its a larger engine with more power pushing the same sized/weighing car. My 06 M6 can reach low 30's on the highway if CC is on. Even if i stomp the pedal to the floor in 5th at 70mph, the lowest it goes is 7.4mpg. It all depends on how you drive. Mines all stock btw
    Now is this what your trip computer says, or what you have actually calculated by filling the tank a few times and dividing the gallons into the (correct) miles driven. Those trip computers are nice for instant readouts, but I always trust the time proven method. I am so anal I check my odometer against my GPS and the mile markers on the highway. I have found that most cars are off in the actual miles driven. My TA will show 100 miles driven and it is actuall 102.4. Our Jeep shows 100 miles driven and it is actually 107.5

    I thought AT GTOs were rated 21 MPG highway, MT were 24, so mid 20s higway is possible with 16 about normal for city. Weight kills city MPG.

  17. #17
    cutting and welding mark21742's Avatar
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    hugger orange
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    Quote Originally Posted by qwkgto View Post
    the ls2 does pretty good on gas milage when i put the twins on it actually does better,too bad my silverado dont do this good and run like that.
    if you keep off of the throttle do you notice an good increase in fuel mileage?

  18. #18
    Grand Imperial Wizard Sarge's Avatar
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    Retired Outlaw Sum Bitch

    My GPS tells me I am going 73mph when the speedo sez I'm going 70mph...so yeah I use the GPS.....

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