Diesel engines are becoming increasingly popular in the United States but Mazda has announced plans to delay the launch of their SKYACTIV-D engine in America.

Diesel engines are becoming increasingly popular in the United States but Mazda has announced plans to delay the launch of their SKYACTIV-D engine in America.

The company declined to go into specifics but said the "SKYACTIV-D can meet emission regulation requirements without the use of a NOx after-treatment system" but they decided "that further development is required to deliver the right balance between fuel economy and Mazda-appropriate driving performance."

There's no word on when the engine will arrive but the 2.2-liter SKYACTIV-D was slated to be launched in the Mazda6 this spring. This obviously won't be happening but Mazda said we can expect to learn technical specifications and fuel economy figures closer to launch.

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