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The Tire Rack's Tire & Wheel Forum
Use this forum to discuss anything in relation to wheels to tires to offsets.
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Old 07-29-2005, 12:57 PM   #1
jcmoney28
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Join Date: Jul 2005
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change factory 15 inch to 18 inch?better or worst gas mileage?

hey any of you guys have changed rims on 2000 323I from 15 in to 18 in ch.do you better gas mileage or worst ?iu notice that in my case it has gotten worst?any way to improve the gas mileage?
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Old 07-29-2005, 01:03 PM   #2
CtrlAltDel
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figure it out yourself by comparing the weight of the wheels

i went from 15->17 lightweight wheels and the gas mileage was the same if not better
now im about to get some 19's (secret for now) and i have a feeling they may be a bit heavier
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Old 07-29-2005, 01:03 PM   #3
2000_328CI
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only drive down hills

seriously though, i find that by using engine treatments found at advanced auto parts, that I get better gas milage as well... not sure why but hey it also improves performance so who wouldn't want that
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