Two years ago, Mazda introduced an advanced new 2.2-liter four cylinder diesel engine in the European market. Since then, we've asked Mazda officials on several occasions whether they would offer that engine in the U.S. market. The company has never ruled out bringing a diesel here, but it has also never said it would. Instead, Mazda has always said that it's watching the market and if there was demand for a diesel in the U.S., it would look at offering the efficient engines. Perhaps the success of Volkswagen's diesel offerings in the U.S. has convinced Mazda to look more seriously at oil-burners.
Mazda also offers a higher revving, more powerful 2.3-liter diesel which would be better suited to U.S. tastes. Mazda already offers the CX-7 with an SCR after-treatment system that would go a long way to meeting American emissions standards. However, at last fall's Tokyo Motor Show, the company also showed a next-generation diesel dubbed Sky-D, which is 20 percent more efficient. According to Road & Track, Mazda has acknowledged that the Sky-D diesel could be part of the lineup for the next generation CX-7 and CX-9, but the obvious question is: When?