But its latest internal combustion creation, in contrast to those racing engines, is designed to burn fuel more frugally: a gas-powered five-stroke with diesel consumption. English engineering ...

like the Cummins 6.7- and 5.9-liter engines that power some Ram trucks. Ford and Navistar teamed up to bring the venerable 7.3-liter Power Stroke diesel to the Blue Oval's trucks beginning in 1994 ...

Two stroke motors offered a better power-to-weight ratio, were cheaper to manufacture, and easier to maintain. Today, advancements in engine tech and environmental regulations have made the gap ...

In the exhaust stroke, the exhaust valve is open and the combustion products are expelled from the cylinder. The sequence shown on the next page represents this behavior for a Mitsubishi direct ...