It may be a main power source for modern work trucks, but these obscure diesel engines show compression ignition designs have taken lots of forms in the past.

In the diesel engine arena, there are ... you no doubt recall that the LB7 models were not without their problems. Among ...

Renewable natural gas isn't perfect as a truck fuel. But, from availability, performance and infrastructure standpoints, no ...

NOx is a significant air pollutant, and diesel exhaust fluid is one of the ... Regulators have linked NOx to several human health problems. NOx is also a major contributor to smog and acid rain.

Mack Trucks teased the launch of a new flagship on-highway semi in 2025 on Nov. 14.

Surprising absolutely nobody, Ontario car insurance rates continue their steady uphill climb with little reprieve in sight.

Power is the easy way to differentiate them, so we've ranked all the available inline-six engines on sale today from least to ...

Clean Energy Fuels Corp. (NASDAQ: CLNE) ("Clean Energy" or the "Company") today announced its operating results for the third ...