nitrogen

Government, Business, Equipment, Safety

EPA to Tighten Nitrogen Oxide Limits for New Heavy Trucks

Tractor-trailers are stacked up on the highway

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.

Noël Fletcher | Staff Reporter

December 20, 2022

Business, Fuel

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