Single Wide-Based Tires

Based upon data provided by tire manufacturers and EPA testing and research, EPA determined that certain tire models can provide a reduction in NOx emissions and an estimated fuel savings of 3% or greater, relative to the "best selling" new tires for line haul trucks, when used on all three axles.  The options offered include both dual tires and single wide tires (single wide tires replace the double tire on each end of a drive or trailer axle, in effect turning an "18" wheeler into a "10" wheeler).  Low rolling resistance tires can be used with lower-weight aluminum wheels to further improve fuel savings.

Specifying single wide-base tires on a new combination truck could save $1,000 immediately and reap annual fuel savings of two percent or more while cutting carbon dioxide by more than four metric tons.

• Single wide-base tires save fuel by reducing vehicle weight, rolling resistance and aerodynamic drag. These tires can also improve tank trailer stability by allowing the tank to bemounted lower.
• There are several single wide-base tire models from which to choose and these tires can be retreaded.