New rules for tire efficiency could lead to significant savings for drivers, with potential annual savings of $1 billion. Low rolling resistance tires are a cost-effective way for automakers to improve fuel economy in new vehicles. However, replacement tires are often less efficient, resulting in increased gasoline consumption for internal combustion vehicles and higher electricity needs for electric vehicles.

Experts note that it is difficult for consumers to determine the energy efficiency of their tires. A recent development aims to address this issue. Further details on this development are available from the source.

The new rules are expected to phase in nationwide changes, although specific details are not provided here.