Fuel prices are likely to keep rising until crude oil flows through the Strait of Hormuz return to normal.

Rising diesel prices could push up costs across the U.S. economy, as many goods move by diesel-powered trucks.

The new heavy-duty engine oil category, PC-12, is nearing the finish line. Here’s what fleet maintenance managers should know before it arrives in 2027.

The Duramax diesel engine has seen quite a few changes over the years. Here's what separates some of the most popular ...

Switching from a gasoline engine to a diesel-powered setup is an enticing possibility, but it requires a lot more work than ...

The American Petroleum Institute (API) is finalizing PC-12 engine oil specs for 2027. Learn about CL-4 and FB-4 licensing ...

While the nation was bracing for a massive hit at the fuel pumps today, the government has thrown a curveball. Premium petrol and industrial diesel are up, but for the average commuter, the ...

The Ford 6.7-liter Power Stroke diesel engine is known for reliability and durability. What type of oil does it use, and how much do you need at each change?

As China and other major suppliers of refined oil in the region restrict exports, import-dependent countries are desperate to secure fuel supplies.

Chevrolet vehicles can be hit-or-miss with their design problems. This has led to a number of models sporting problematic engines that you should avoid.

BUSINESSiQ editor Mike Hughes meets two of Cummins’ most experienced green energy champions ...

The train moved under its own power for the first time since 1952, following more than 30 years of restoration work by museum volunteers.