Nissan develops an SULEV rated clean diesel.

TOKYO -- Nissan Motor Co., Ltd. today announced that a new clean diesel technology using high-performance catalysts shows great promise and may be able to meet the State of California's standard for super-ultra-low emission vehicles (SULEVs), equivalent to the Tier2Bin2 emissions requirements. Nissan plans to do further research and development of the clean diesel technology for commercial application in its future products. Three components work together in Nissan's new technology to reduce diesel emissions: modulated-kinetic (MK) combustion*?, high-performance catalysts, and advanced engine control systems*?.