A new fuel-blending method appears to make diesel engines cleaner and more efficient at the same time. Early results point to ...

Porsche is doubling down on advanced internal combustion tech with a new water-injection system patent. Porsche refines water ...

According to sources such as Ohio Diesel, the current 6.7-liter Cummins inline-six is the most reliable diesel engine used in medium and heavy-duty trucks on the market, with Ford's Powerstroke coming ...