Posts Tagged ‘fuel economy’

Mazda hard at work on Skyactiv 2 engine technology

Published by Mazda Blogs on January 9th, 2014

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As Mazda continues the current rollout of its still-new Skyactiv technology, the automaker is already looking at improving its family of engines for even better fuel economy and emissions reductions. Automotive News reports that with stricter fuel economy and emissions regulations planned for 2020 and 2025 in Europe, Mazda will likely release engines with next-generation Skyactiv 2 technology by the end of this decade, and Skyactiv 3 units just five years later.

The latter is expected to focus on improved engine cooling and lessening energy losses, but the big news in AN’s report is that the next-gen Skyactiv 2 engines will use Homogeneous Charge Compression Ignition, or HCCI. This type of ignition is very similar to how a diesel engine operates (with high compression and using the compression stroke for fuel combustion rather than spark plugs), a method said to provide a cleaner and more efficient fuel burn – to the tune of a 30-percent improvement in fuel economy compared to current Skyactiv engines. Other automakers, including Hyundai, have already announced they are developing HCCI powerplants with similar technology and characteristics, so Mazda likely won’t be a lone wolf here.

Equipped with HCCI technology, Mazda figures to be able to compete with larger automakers in terms of fuel economy and emissions without resorting to hybrid powertrains, continuously variable transmissions or automatics relying on more forward gears (eight or more) for optimal efficiency. Some of the challenges of HCCI, according to AN, include the need for better engine cooling, risk of misfire at high and low rpm and uneven engine performance based on fuel properties.

Mazda hard at work on Skyactiv 2 engine technology originally appeared on Autoblog on Wed, 08 Jan 2014 13:58:00 EST. Please see our terms for use of feeds.

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2013 Mazda CX-5 achieves best-in-class 26/35 mpg EPA rating

Published by Mazda Blogs on January 12th, 2012

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2013 Mazda CX-5 front three-quarter

Mazda has released the official EPA fuel economy figures for its 2013 CX-5, and as anticipated, the new compact crossover has achieved an all-important best-in-class designation. The front-wheel-drive, six-speed manual-equipped CX-5 is rated at 26 miles per gallon city and 35 mpg highway, thanks to Mazda’s efficient Skyactiv direct-injection 2.0-liter inline-four. In fact, Mazda claims the CX-5 actually gets the best fuel economy rating of any SUV (read: crossover) sold in America, full stop.

CX-5 models equipped with front-wheel drive and Mazda’s new Skyactiv six-speed automatic transmission are good for 26/32 miles per gallon city/highway. And while those highway numbers match up with the four-cylinder Chevrolet Equinox, the Mazda’s 26 mpg city rating bests the Chevy by a whopping four mpg. All-wheel-drive CX-5s are rated at 25/31 mpg city/highway. Follow the jump for Mazda’s official release.

Continue reading 2013 Mazda CX-5 achieves best-in-class 26/35 mpg EPA rating

2013 Mazda CX-5 achieves best-in-class 26/35 mpg EPA rating originally appeared on Autoblog on Wed, 11 Jan 2012 09:57:00 EST. Please see our terms for use of feeds.

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