Increased Fuel Efficiency - New tread compound lowers rolling resistance by 9% versus the MICHELIN® XZE®2+ tire. Based on industry standard rolling resistance testing of comparable tires or retreads. Actual results may vary, and may be impacted by many factors, to include road conditions, weather and environment, driver performance, etc. 9% lower rolling resistance is in comparison to the 265/70R19.5 MICHELIN® XZE®2+ tire.