LOUISVILLE, Ky. (March 26, 2010)—The Environmental Protection Agency EPA has verified the Continental HDL2 DL Eco Plus, a deep lug drive tire, as SmartWay compliant, according to Continental Tire the Americas.
The tire, a low rolling-resistance-optimized version of Conti's HDL2 deep lug drive tire line, will be available to dealers in June in one size, 275/80R22.5, said Clif Armstrong, director of commercial vehicle tire marketing for Continental.
The tire offers a full inch of tread depth and a closed shoulder tread design that provides enhanced traction in wet and dry road conditions and resists irregular wear, the firm said.
This latest approval brings to five the number of Conti truck tires on the EPA SmartWay list. The others are HSL2 (steer), HDL Eco Plus (drive), HTL Eco Plus (trailer) and HTL1 (trailer).
Tires verified by the EPA for lower rolling resistance can provide a reduction in nitrogen oxide emissions and an estimated fuel savings of 3 percent or greater, relative to the “best selling” new tires for line-haul trucks, when used on all five axles on long-haul class 8 trucks.
Conti stressed that its tires have all been verified individually and not in a package with steer and trailer tires, a practice allowed for the time being under EPA guidelines, Roger Stansbie, director of radial truck tire technology development for Continental, said in a presentation at the Mid-America Trucking Show in Louisville.
“This … combination procedure potentially meant that some tires with higher rolling resistance indexes than the limit for SmartWay could be verified,” Stansbie said, “because the lower … index of the partner tires in the combination could make up the difference.
“However, it is generally understood that during 2010, SmartWay will no longer allow this combined method to be used to gain approval. In addition, those tires previously approved using the combined method will have to be re-verified as individual tires before the end of the year.”