From electric to high-tech renditions of classics, Volkswagen has dozens of vehicle offerings. But here's why you can't buy a ...

What was once the fuel of the future has been forgotten by the masses, but in the face of an emissions crisis, it may be time ...

Peterbilt 579 day cab tractor equipped with Cummins’ 15-liter X15N natural gas engine will be available for heavy duty trucking fleets to test on their normal routes in up to two-week intervals.

The 2025 Peterbilt 579 day cab tractor, branded in Clean Energy's signature green and equipped with Cummins' 15-liter X15N ...

No, your truck won't just vanish from your driveway, but you could be left facing hefty fines and other serious penalties.

Violate the Clean Air Act and you’ll be in big trouble. Diesel truck tuners have learned this the hard way over the last ...

Starting Jan. 1, 2025, vehicle safety inspections will soon be a thing of the past for most Texans. That's when House Bill ...

California Air Resources Board certifies Zonar as first and, so far, only telematics device for its Clean Truck Check ...

A small electric SUV with 300 miles of range produces 52% fewer life-cycle greenhouse gas emissions than a comparable gasoline vehicle, according to the U.S. Department of Energy (DOE).

The diesel scandal had wide-ranging consequences ... The software turned up emissions controls during testing, then turned them down during everyday driving, allowing the cars to emit more than ...