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Old 02-23-2020, 07:16 AM   #2
CapriRacer
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Re: Why Do Original Equipt Tires Rate So Low?

It isn't so much that the vehicle manufacturers work WITH the tire manufacturers as much as it is the vehicle manufacturers DICTATE the specs. And because fuel economy is so important to a vehicle manufacturer (and tire wear isn't!), vehicle manufacturers specify low rolling resistance values.

To get low RR values, the treadwear and/or traction (especially wet traction) gets sacrificed. And since the vehicle manufacturers don't provide a warranty on tires, unlike almost every other part of the car, the vehicle manufacturers can specify low RR values with impunity.
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