40 MPG or more?
SkyActiv is not the newest Mazda in development, nor is it a new technology. Instead it is a fresh, new approach in automobile design that includes many new technologies and advancements. And recently, Mazda gave us an early look at its progress.
The idea is to cut fuel consumption in modern Mazdas by 30%. That's right, 30%. And across the ENTIRE line of Mazda vehicles by the year 2015. The first step for Mazda was to readdress every step of the engineering process, and question even the smallest accepted conventional wisdoms when it comes to designing a fuel-efficient car. In summary, Mazda has gone back to the drawing board to recreate their line with new diesel engines with super-low compression ratios, smaller and lighter transmissions, lighter vehicle bodies and the use of auto-stop and regenerative braking technologies. All of these are part of the holistic concept called the Mazda SkyActiv Project.
Perhaps the star of the show is the 2.0 Liter SkyActiv gasoline engine that will replace the current 2.0 Liter Mazda engine. It has a lower compression ratio than any other engine (high ratio engines extract more energy from an air-fuel mixture, but are generally less efficient at it), but the unique design of the SkyActiv engine has a second stage which provides a more "complete burn", which translates to more fuel efficiency, same performance. A multi-port fuel injector and exhaust manifold with compartmentalized gas runners (similar to race car engines) rounds out the design and further increases performance and fuel efficiency.
Many analysts are predicting that about 13 percent of all passenger cars will be electrically-propelled by 2020 in the Americas, with 23 percent in Europe. Mazda believes that even as the electric powertrains take some of the share, most people will still be eager to buy and drive a fuel-efficient vehicle with a gas engine. We are with them. Though the hum of an electric engine is music to our ears, nothing is sweeter the sound of a turbocharger spooling up.
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