Clean Diesel

Tula Technology Dynamic Skip Fire

News: Cummins and Tula Work Together To Advance Diesel Tech

Cummins, one of the world’s leading diesel engine maker, has joined forces with Tula Technology, a California start-up, to explore a sophisticated cylinder deactivation system that could solve the conundrum. If it’s proven, the result would be a diesel engine that could reach a near-zero emissions level.

2020 GMC Sierra Denali 1500 Crew Cab Duramax Diesel

Road Test: 2020 GMC Sierra Denali 1500 Crew Cab Duramax 4WD

With the 2020 GMC Sierra Denali 1500 Crew Cab Duramax 4WD, you probably already know what you want in your life and, yes indeed, you can get what you want.

2020 Ram 1500 EcoDiesel Club Cab Longhorn 4WD

Road Test: 2020 RAM 1500 Crew Cab Longhorn 4WD EcoDiesel

The 2020 Ram 1500 Longhorn Crew Cab 4WD EcoDiesel will cause you to ponder the question: Am I buying a premium vehicle for around-town errands and long family road trips or a work truck with best-in-class towing?

2020 Chevrolet Silverado 1500 Duramax Diesel

Road Test: 2020 Chevrolet Silverado 1500 Double Cab RST 2WD Duramax Diesel

We’ve driven all of the engine options and both 2WD and 4WD models of the Silverado, and the 2020 Chevrolet Silverado Duramax turbodiesel is far-and-away our favorite.

2019 Ford F-150

Comparison Test: 2019 Chevrolet Silverado vs. Ford F-150 vs. Ram 1500

This is what you can get right now to solve that pickup-shaped hole in your life. The choices have never been broader or more rewarding.

Hyundai Kona EV

News: Wards Names 2020’s 10 Best Engines & Propulsion Systems

The 2020 Wards 10 Best Engines list, which was honed down from 26 nominees, includes four electrified powertrains, including Hyundai’s 150-kilowatt electric drive for the Kona EV and the Honda Accord Hybrid’s 2.0-liter four-cylinder Atkinson cycle engine.

Thomas electric school bus

Analysis: Cleaning Up School Transportation

In the U.S., around 480,000 yellow buses drive nearly 3.5 billion miles each year transporting school students. These buses, along with students driving personal vehicles, emit tons of greenhouse gases into the environment, which contribute to global warming and impact health.