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Old 12-25-2014, 04:53 AM   #7 (permalink)
NickelB NL
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Join Date: Apr 2012
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Focus - '05 Ford Focus tdci Futura
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In my own experiance width is a factor for rolling resistance. A couple of years back i also had a ford ka. It got 16.5 km/l on 165's. And 14 on 195's. With the same trips
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