Aug. 16 (Bloomberg) — Nissan Motor Co. may make diesel autos widely available in the U.S. by 2012 models as the carmaker looks to add fuel-efficient vehicles that emit less carbon dioxide, its U.S. product-development chief said.

Nissan this month said it developed methods to treat diesel exhaust and meet standards in California and other U.S. states that now bar them because of emissions. Europe, the largest market for diesel autos, will adopt rules closer to California’s in 2012, making that the time to introduce such vehicles in the U.S., Nissan’s Larry Dominique said in an interview.

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