Researchers in Wisconsin have developed a concept engine that can run on gasoline and diesel at the same time, with a ...

Several of the world's largest truck makers are switching away from diesel. The replacement comes in two forms, and the race ...

Early adopters of the X15N engine have seen positive results, which may translate to additional fuel demand, according to the latest State of Sustainable Fleets report. Natural gas vehicle adoption ...

Volvo's D13 engine cuts NOx emissions by 80%, aligning with 2027 EPA standards for cleaner, efficient heavy-duty truck ...

Researchers studying a hydrogen combustion concept built around argon gas say the technology could reach 60% thermal ...

Rolls-Royce and easyJet have completed ground testing of a modified Pearl 15 engine running on 100% hydrogen at full takeoff ...

Diesel engines are capable of putting out plenty of power. But if you don't keep up with maintenance, a few issues could make ...

Higher octane fuel resists engine knock under compression — it is not a cleaner or more powerful fuel for all vehicles. Modern knock sensors in post-2000 engines automatically compensate for ...

Smaller, more powerful and fuel-efficient engines don’t seem to have great long term reliability. Engine recalls from major automakers such as GM, Toyota and Honda have cost billions of dollars. Moves ...