The Environmental Protection Agency will move forward with the previous administration’s 2027 heavy-duty engine low NOx ...

What regulators are calling a historic and unprecedented agreement between the California Air Resources Board and major truck and engine makers should provide some much-needed flexibility for truck ...

Increasingly stringent federal emission standards for diesel engines have become a major headache for trucking. Like most new technologies, the post-October 2002 emissions controls have their share of ...

In April 2024, the U.S. Environmental Protection Agency announced its proposed “Phase 3 Greenhouse Gas” program, enforcing stricter regulations for heavy-duty vehicles including buses, delivery vans, ...

New EPA 2027 emissions rules also mean new diesel engine oil specs. A new generation of heavy-duty engine oils will feature lower viscosity, improved thermal resistance, and possibly longer oil drain ...

This week's 10-44 is brought to you by Chevron Delo 600 ADF ultra low ash diesel engine oil. It's time to kick some ash. Soot, nitrogen oxide, hydrocarbons, carbon monoxide, let's take a closer look ...

The EU’s decision to soften its 2035 ICE ban while tightening emission norms has boosted demand for catalytic converters, ...

Diesel engines may still get a chance to survive in the future because of the latest research and claims from the University of New South Wales. In their study, its team made a hydrogen-diesel engine ...

The U.S. Environmental Protection Agency proposed on Monday new standards for heavy-duty truck and engine manufacturers to further reduce emissions starting in model year 2027. EPA says the proposed ...