The EPA questions if diesel DEF de-rates are essential for emissions compliance. Could changes be on the horizon? Discover ...

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 ...

Purdue University's Greg Shaver doesn't believe there should be a trade-off between protecting the air we breathe and achieving better engine efficiency of large vehicles on the road. Shaver, a ...

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 ...

Long-haul truckers and diesel engine enthusiasts had to rethink their entire operations in 2010 when the Environmental Protection Agency mandated selective catalytic reduction technology. Selective ...

Diesel engine manufacturer Cummins has agreed to pay $1.675 billion to settle civil cases brought against the company by the U.S. Department of Justice and the state of California for allegedly ...

Starting in 2026, diesel owners and repair shops will no longer run the risk of federal criminal chargers for performing two ...

There is a war going on — against the diesel engine. It is being waged not because the diesel engine is a “threat” to the “climate.” It is being waged because the diesel engine is a threat — to the ...

GRAND RAPIDS, MI – Two men and two companies tied to a scheme to bypass emission controls on heavy-duty diesel engines pleaded guilty this week to conspiring to violate the federal Clean Air Act. So ...

GRAND RAPIDS, MI – A man who worked as service manager at Accurate Truck Service admitted his role in a scheme to bypass emission controls on heavy-duty diesel engines. Robert Swainston, 50, of ...

High output engines were once expected to run reliably for hundreds of thousands of miles if owners kept up with basic ...