Porsche has patented an innovative six-stroke engine that combines the benefits of a two-stroke engine's power with the ...

Researchers in Hong Kong have developed a hybrid-energy heat pump that seamlessly combines absorption and compression cycles using crystallization-free ionic liquids, improving efficiency and ...

Mazda's Miller-cycle engine was a notable entry in the annals of automotive history, combining variable valve timing with a screw-type supercharger to maximize the brief compression cycle. The most ...

More and more, manufacturers are using engines that take advantage of what's called the Atkinson cycle for engine combustion, especially with hybrids. A great example is the new-for-2017 Toyota Prius ...

Making sure your engine has proper compression is vital for its health. You can rely on one of two methods to test this, but ...

Want to know how healthy or unhealthy your engine really is? Get yourself a compression tester and find out. Despite how complex many modern vehicles are, you can do many common repair and maintenance ...