As more than just a Mazda seal of approval, the Skyactiv engine offers technical advancements which includes an impressive ...

Complexity in cars is a funny thing ... The first variable-compression ratio engine was completed in 1919 by Sir Harry Ricardo to determine the detonation point of certain fuels.

Increasing an engine’s compression ratio is a proven way of unlocking extra horsepower, but there’s a point of diminishing returns. The team at Garage 54, the Russian mechanics who built a V16 ...

Diesel engines typically offer higher fuel efficiency and torque and longer lifespans than gas engines. How does the lack of ...

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 ...

Whereas, by comparison, the gas-powered Hemi option in the same Ram only has a 10.9:1 compression ratio. These engines require such a high compression ratio because diesel fuel is less volatile ...