1. www.ResponsiblePurchasing.org Responsible Purchasing Guide for Light-Duty Tires and Wheel Weights Light-Duty Tire and Wheel Weight Webcast March 18, 2008 Matt Kittell Program Manager Responsible Purchasing Network

2. www.ResponsiblePurchasing.org Overview  Best practices  Low rolling resistance tires  Retread tires  Lead-free wheel weights 2

3. www.ResponsiblePurchasing.org Best Practices Proper tire inflation 3 1 psi drop in tire air pressure = 1-2% rolling resistance increase No excess load Less weight = lower rolling resistance End-of-Life Scrap markets, not landfills!!!

4. www.ResponsiblePurchasing.org Tire Energy Use 4  1/3 lost due to rolling resistance  Inflation and LRR tires reduce rolling resistance  10% less rolling resistance = 1-2% better fuel economy

5. www.ResponsiblePurchasing.org Low Rolling Resistance (LRR) Tires 5  New cars sold with LRR tires  LRR replacement tires difficult to find  Rolling Resistance Coefficient (RRC)  Specify SAE J1269, <0.01

6. www.ResponsiblePurchasing.org Retreads 6  Retread tires save five gallons of oil per tire  Millions of gallons could be saved annually if light-duty vehicles used more retreads

7. www.ResponsiblePurchasing.org Retread Tires 7  Bad tread does not mean bad casing  Retread method similar to new tire manufacturing  Ensure quality (e.g., federal spec ZZ-T-441H)

8. www.ResponsiblePurchasing.org Wheel Weights 8 Each tire has wheel weight (Pb) 4.5 oz per vehicle 2,000 tons of lead wheel weights fall off tires each year Abrade into particles polluting water and air

9. www.ResponsiblePurchasing.org Wheel Weights 9  By 2009, most new vehicles will have steel or zinc weights  Specify for steel weights in replacement market  Visit www.LeadFreeWheels.org  Lead weights – BAD  Zinc weights – Good  Steel weights - BEST

10. www.ResponsiblePurchasing.org Responsible Purchasing Guide for Light-Duty Tires and Wheel Weights www.ResponsiblePurchasing.org/Purchasing_Guides/Tires/ Matt Kittell Program Manager Responsible Purchasing Network matt@newdream.org 301-891-1004 matt@newdream.org