The U.S. Department of Energy says up to 15% of fuel consumed by a car is used to overcome a passenger tire’s resistance to the road. Studies by Green Seal Inc., a nonprofit environmental standard development and certification organization, show low rolling resistance tires can reduce fuel consumption by 1.5% to 4.5%. Yet consumers shopping for replacement tires tend to focus on longevity and price rather than fuel efficiency.

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Earthgarage – Greener Car. Fatter Wallet.