Rolling resistance is largely a function of the tread width. The OEM Goodyears on Gen 1 Volts has a 6.9" tread width. Most other available tires in the 215/55/17 size will have a wider tread. Even the Goodyear Assurance Fuel Max is available in 3 different tread widths. Tire rack.com has a spec page which lists all the dimensions including tread width on any tire they are offering. It's best to compare replacements to the OEM and try not to select one too wide. FYI I'm running Michelin Primacy MXV4,s which have a 7.3" tread width. Estimated hit on range and gas mileage about 6-8%.
Tires and Range
So the Volt comes with un-sticky high-mpg tires. What impact on range might their be to putting on some better tires that might improve feel, handling, and braking? Has anyone tried this yet and gotten any data?
(Sorry if this has been discussed / beaten to death before)
(Sorry if this has been discussed / beaten to death before)
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