According to LeftLaneNews, Honda is developing a "low-emission diesel V6 engine specifically designed for the U.S. market for the 2010 model year."
The engine would be most likely to appear in the Odyssey minivan at
first, although installation in Acura sedans and SUVs is a possibility."
According to Nikkei Weekly, a Japanese weekly newspaper,
the motor will be designed for vehicles currently using Honda's 3.5
liter V6 engine. Honda is also looking to import its newly developed
2.2 liter four-cylinder diesel engine to the United States. This engine
is designed to fit in cars such as the CR-V and Acura TSX.