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wheel size and gas mileage?

This is a discussion on wheel size and gas mileage? within the Wheels and Tires forums, part of the General Help category; I'm about to put 18 and 19 inch wheels on my car, how will they effect my gas mileage compared ...

  1. #1
    Aw shucks. bluefields88's Avatar
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    2000 Camaro SS #3574 A4

    wheel size and gas mileage?

    I'm about to put 18 and 19 inch wheels on my car, how will they effect my gas mileage compared to my 17s?

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    Senior Member GULLETT17's Avatar
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    00 TA PWTR, 98 VertTA NBM
    80 TA BLK, 80 Formula NBM

    i dont think itll make much difference, as long as you get em balanced and aligned. aftermarket wheels can really throw off your alignment

  3. #3
    Aw shucks. bluefields88's Avatar
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    2000 Camaro SS #3574 A4

    they are OEM C6 wheels, so they should be okay I would think

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    Member squee's Avatar
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    Navy Blue Metallic
    2000 SS M6

    Quote Originally Posted by bluefields88 View Post
    they are OEM C6 wheels, so they should be okay I would think
    Uhmm, NO. You should still get an alignment.

  5. #5
    Senior Member GULLETT17's Avatar
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    00 TA PWTR, 98 VertTA NBM
    80 TA BLK, 80 Formula NBM

    Quote Originally Posted by squee View Post
    Uhmm, NO. You should still get an alignment.

  6. #6
    Member Speed Psychosis's Avatar
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    Red
    98 T/A M6 w/lid and LM1

    wider tires can make worse mpg. why a prius uses rubber bands for tires.

  7. #7
    Senior Member GULLETT17's Avatar
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    00 TA PWTR, 98 VertTA NBM
    80 TA BLK, 80 Formula NBM

    Quote Originally Posted by Speed Psychosis View Post
    wider tires can make worse mpg. why a prius uses rubber bands for tires.
    id agree with this . . . more resisting friction im guessin

  8. #8
    Crazy Canuck ! Eugenio_SS's Avatar
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    triple-black
    2000 CamaroSS convertible

    the friction does almost nothing to it... its more the rotational inertia that has to do w/ it.
    Eugenio_SS
    almost stock triple-black 2000 SS convertible with 17x11s on all 4 w/ 315s at the track or on the street with 18x10.5s on all 4 w/ 315s: (1), (2)

  9. #9
    Member hoss 2000 z-28's Avatar
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    Monterey Maroon Metalic
    2000 Z28

    Also don't forget about the total outer diameter of your tires from stock to these new 'vette wheels! There is a tire size calculator on this site, make sure you get compatable tire sizes for your new rims. If anything, wider tires will reduce fuel economy because they produce more friction and rolling resistance (275, 295, 315 vs 255, etc.).

  10. #10
    Aw shucks. bluefields88's Avatar
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    2000 Camaro SS #3574 A4

    I'm just going with the same size tires that the rims came with from the factory. 285's in the back and 245's in the front. I weighed the back 19" rim, and it only weighs 25 pounds without any tires on it. only 3 pounds more than my stock 10 spokes. I'm guessing the front ones will be around 22. haven't weighed them yet.

  11. #11
    Member hoss 2000 z-28's Avatar
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    Monterey Maroon Metalic
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    In that case I really don't see a reason for your MPG to suffer much at all.

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