17" rims and fuel economy - Toyota Yaris Forums - Ultimate Yaris Enthusiast Site

12-17-2008, 06:12 PM

#11

thebarber

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Quote:

Originally Posted by MadMax

But remember, if you add 17" wheels then you need to multiple the distance driven by 1.07 to get the exact mileage, due to the larger wheel diameter...

So when I drive an "indicated" 350 miles, in reality it is 374.5 miles...

Cheers! M2

not really...its all about tire size

oem is 185-60-15

205-40-17 are within 1.23% of the oem rolling size

215-40-17 are within 0.125%

really, youre only going about 1% farther rather than 7%...

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