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URL:  https://boards.fool.com/seriously-worn-out-tires-have-a-smaller-30526784.aspx

Subject:  Re: Electric car monies Date:  2/5/2013  8:43 PM
Author:  Windchasers Number:  40673 of 90628

Seriously? Worn out tires have a smaller circumference. That means they go a smaller distance for each engine revolution. That means lower mpg by my estimation.


Umm.. isn't that balanced by a decrease in torque needed to propel the car forward?

To a first-order approximation, the change in circumference from tire wear shouldn't have any effect on gas mileage.

~w, still remembers college physics
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