Thread: Mileage

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  1. #1 Mileage 
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    Does anyone know of cheep and efficient ways of increasing gas mileage without sacrificing performance in 2005 Grand Prix Base?
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  2. #2 Re: Mileage 
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    Watch your driving.
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  3. #3 Re: Mileage 
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    I was thinking more along the lines of after market upgrades and work on the vehicle...
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  4. #4 Re: Mileage 
    Perma-Banned! JK LOL Explicit_Spade's Avatar
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    Proper maintnance at proper maintnance intervals.
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
    Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750
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  5. #5 Re: Mileage 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    tune up.

    plugs, wires, clean the throttle body and maf, air filter, normal maintence.

    and drive normally and do the speed limit on the freeway.

    SMGPFC Member #1
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  6. #6 Re: Mileage 
    Poppin 'em thangs mechguy's Avatar
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    HP tuners and go to town optimizing timing.
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  7. #7 Re: Mileage 
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    Quote Originally Posted by JakeH0605 View Post
    I was thinking more along the lines of after market upgrades and work on the vehicle...
    Watching your driving doesn't cost anything but perhaps a minute or two in increased travel times and nets the best improvements.
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  8. #8 Re: Mileage 
    GTX Level Member 98L36's Avatar
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    Well I've heard that cleaning the TB and maybe doing a SeaFoam treatment could help a little bit. Basically try to make the engine not work as hard. I might even try new plugs if the ones in there are due for a change. Sad part is what you spend in upgrades and work might end up costing you more money than just dealing with the mileage you have.

    One thing you could do to "work on the vehicle" would be to reduce weight. Noticable gains? Probalby not, but if you're wanting every 100th of a MPG that you can get then it might be worth your time.
    White '98 GT Coupe - Autopia Fog Housings w/ 4300k HID's + LED Rings
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  9. #9 Re: Mileage 
    Perma-Banned! JK LOL Explicit_Spade's Avatar
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    I think we can all agree that selling or trading your Grand Prix for a Geo Metro is the only way to truely get the BEST mileage increase.

    If you insist on keeping your Grand Prix, Get a tornado for your intake and a chip off of ebay.
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
    Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750
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  10. #10 Re: Mileage 
    GTX Level Member 98L36's Avatar
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    Quote Originally Posted by Explicit_Spade View Post
    I think we can all agree that selling or trading your Grand Prix for a diesel VW is the only way to truely get the BEST mileage increase..
    Fixt.
    White '98 GT Coupe - Autopia Fog Housings w/ 4300k HID's + LED Rings
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  11. #11 Re: Mileage 
    Perma-Banned! JK LOL Explicit_Spade's Avatar
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    No sir. If you floor those you don't still get 60+mpg. You can floor that metro all day err day and get 60+.
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
    Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750
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  12. #12 Re: Mileage 
    GTX Level Member 98L36's Avatar
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    At least there's something there when you floor it though...
    White '98 GT Coupe - Autopia Fog Housings w/ 4300k HID's + LED Rings
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