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 ...

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, ...

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 ...

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 ...

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 ...

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

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 ...

Truck engine maker Cummins has agreed in principle to pay a $1.675 billion fine for installing devices on hundreds of thousands of engines to allow them to emit excess pollution, the largest-ever ...