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Tire rack Confirms Low Resistance Tires Save Fuel - Web Exclusive

Dec 11, 2009

Following a recent test at its South Bend, IN test track, Tire Rack has published a report analyzing the effectiveness of eco-friendly, low rolling resistance (LRR) tires. It confirms that LRR tires are an effective way for to save money while reducing carbon emissions through increased fuel efficiency.

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As tire manufacturers continue to release eco-friendly products, Tire Rack decided to conduct a Real World Economy Run to determine whether LRR tires were effective at increasing fuel efficiency. The test, used a fleet of Toyota Prius hybrids fitted with Goodyear Integrity all-season radial tires as a baseline. This was then compared to other eco-friendly and standard tire models for fuel efficiency and traction.

Each tire was driven over 550 miles om a 6.6-mile loop of expressways, highways and side roads. The Prius outfitted with the baseline tire achieved 51.4 mpg.

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Tire LineTest MPG*% vs. Baseline
Michelin Energy Saver A/S53.8+4.74%
Bridgestone Ecopia EP10053.5+4.74%
Yokohama dB Super E-Spec52.8+2.81%
Goodyear Assurance Fuel Max51.6+0.37%
Goodyear Integrity51.4---
Michelin HydroEdge with Green X51.1-0.59%
Goodyear Assurance ComforTred50.0-2.64%

During the test, the difference between the lowest and highest recorded mpg would result in an annual saving of about 21 gallons of regular gasoline at a cost of about $52.50 (at $2.50/gallon) for drivers traveling 15,000 miles a year.

The fuel economy recorded for each tire and its relative position compared to the Integrity tire’s average is available at www.tirerack.com/mpgtest While ways of achieving lower tire rolling resistance had previously traded wet traction and/or treadwear, further tests at Tire Rack has also shown that the newest high-tech, fuel-efficient tires have achieved savings without compromising traction, thanks to the introduction of new tread compounds, tire designs and weight optimization.

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