Quote:
Originally Posted by ConnClark
ummmm.... How does new tires translate into more rolling resistance. New tires have stiffer side walls and the belts are stiffer. This leads to to lesser deformation which has the same effect as hyperinflation and means less rolling resistance. Every time I get new tires my mileage goes up. Further proof of this is when new tires are tested for rolling resistance they use brand new tires not used ones.
In discussions with my father who used to work in designing tires for Firestone he confirmed that stiffer side walls and belts would lead to lower rolling resistance. In fact its the stiffness of the belts is what gives radial tires better performance and lower rolling resistance than ordinary tires.
|
Well, that may be true if you are getting the
same new tires, but even then more tread == more rolling resistance, and in my case I went from a "summer tire" with a low tread depth to begin with to an all season with a much more aggressive tread pattern, lots of siping, and easily twice the depth of the previous tires.
The upside of this is that I definitely noticed improved traction when driving in heavy rain, and I am probably going to be much happier this winter.
