Quote:
Originally Posted by Nerys
ahh so Cr is coefficient of rolling resistance or something like that?
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Hi Nerys,
Yes, that is correct. Crr stands for Coefficient of Rolling Resistance.
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Note that Crr does not simply imply tires, but all the moving components in the drive train and so on.
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As our vehicles are optimized in aero shape, the Crr will stand out more.
I expect more manufacturers to offer low Low Rolling Resistance (LRR) tires.
Same thing about motor oils; they have been getting thinner in newer vehicle releases.
Jim.