WASHINGTON — The Environmental Protection Agency on Dec. 20 announced more stringent clear-air standards for heavy trucks that the agency said are 80% stronger than current limits.
December 20, 2022BusinessFuel
Consensus Scarce for Nitrogen Tire Inflation
Fleets that have embraced nitrogen tire inflation said the practice extends service life and improves fuel efficiency, but tire makers stop short of endorsing use of the gas in their products.
March 19, 2012