The Trump administration has updated diesel engine rules to prevent trucks and farm equipment from slowing down or shutting ...

Several decades ago, major manufacturers invested heavily in aviation technology as an alternative for tractors, trucks, and ...

This particular OM651 diesel engine failed, but the issue does not appear to be related to its complex, overbuilt ...

A key enabler is the newly redesigned aftertreatment system, which uses trusted components in a smarter and more efficient ...

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 ...

The new heavy-duty engine oil category, PC-12, is nearing the finish line. Here’s what fleet maintenance managers should know ...

Vortec engines have lasted for over three decades. There are reasons as to why they lasted so long, but there are also reasons as to why they fell out of favor.

Think big engines mean big money? These 10 non-luxury SUVs prove otherwise.