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In an effort to increase fuel-economy across its lineup by 30 percent by 2015, Mazda will introduce more fuel-efficient powertrains by 2011. The Japanese automaker is working on developing a range of 4-cylinder and rotary engines that are expected to increase fuel-economy of its vehicles, reports Automotive News.

Seita Kanai, head of Mazda’s r&d, said that an upgraded version of the company’s 2.0L 4-cylinder engine with a new 6-speed automatic transmission will increase city fuel-economy to 32 mpg from 22. Highway fuel-economy would be increased from 32 mpg to 42 mpg.

“We want to provide this technology to all owners, not just through a few eco-friendly vehicles,” Kanai said.

Mazda did not say which vehicles or engines would be the first to hit markets with increased fuel-economies. However, the redesigned MX-5 convertible and Mazda5 minivans are likely to get the engines first. The entire model lineup will follow with the new engines by 2015.

- By: Kap Shah

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