NHTSA is proposing a simplified tire label to better inform consumers about the fuel-economy impact of rolling resistance as well as safety and tread life. They estimate that up to 2% of fuel could be saved as consumers migrate to better tires.
Background
Goodyear says Assurance Fuel Max has 27% less rolling resistance than conventional tires
Michelin says Energy Saver A/S is 8% more fuel efficient than other tires in its class