Four more Yokohama commercial truck tires have been added to the U.S. Environmental Protection Agency's SmartWay list of verified fuel-saving technologies for tires.
This brings the number to seven of Yokohama products that are recognized as SmartWay "low rolling resistance tires."

SmartWay Transport, a collaboration between the EPA and the freight sector, is designed to improve energy efficiency and energy scrutiny, and reduce greenhouse gas and air pollutant emissions.

The Yokohama commercial tires receiving SmartWay status are the 101ZL and 103ZR steer tires, RY587 trailer tires and the TY517MC2 drive tires. These tires meet the SmartWay program's stringent verified low rolling resistance criteria because they run cooler and help reduce fuel consumption, which cuts costs and benefits the environment.

The 101ZL and 103ZR steer tires are both part of Yokohama Tire's Zenvironment line, which consists of ultra high-tech truck tires that last longer and are more fuel efficient. The 103ZR, at 23/32, is the deepest SmartWay-verified tire. The RY587, which offers premium performance for long-haul trailer applications, delivers a combination of long, even original tread mileage, lower fuel consumption and outstanding durability. The TY517MC2 delivers outstanding traction, long even wear and superior durability while also providing excellent low rolling resistance.

In January 2009, Yokohama's RY617 steer tire, 703ZL drive tire and RY587MC2 trailer tire became the first three tires for the company to be named verified low-rolling-resistance tires, approved for use on SmartWay-certified trucks.