Japanese Oil company to install Diesel Particulate Filters - DPFs - Around the World of Diesel - Brief Article
According to a report from Nikkei news service last week, Cosmo Oil will install DPFs on trucks and buses at its affiliated service stations, plus offer maintenance and inspection. A consortium of seven Japanese companies aims to manufacture DPFs costing between U.S. $4,000 to $8,000 apiece, depending upon vehicle engine size, the report said.
Some 120,000 vehicles would be retrofitted with DPFs in metro Tokyo over the next year; 5 million DPFs go Japan-wide in 5 years.