Engines are getting smaller and more powerful, but these high-strung engines may not be as reliable in the long run as older engines.

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, although robust and efficient, release harmful atmospheric pollutants such as nitrogen oxides and fine particles, posing challenges for health and the environment. A simple approach is ...

In America, the average mpg of a semi truck sits firmly in single-digit territory. Efficiency improvements mean that today's trucks now average around seven mpg, but some states still see trucks ...

Diesel engines have carried the bulk of North America’s freight my entire life. Estimates in 2020 were that diesel trucks carried more than 65% of freight by weight and exceeded 72% by value according ...

LEEDS, Alabama—Just how efficient can a fully loaded Class 8 tractor-trailer be? Shell sought to answer that question when designing its Starship 3.0, a Class 8 concept equipped with readily available ...

We may receive a commission on purchases made from links. When winter hits, it brings more than just chilly temperatures — it also brings a bunch of new challenges. Icy roads can decrease your grip ...