DaimlerChrysler, Audi and Volkswagen announced on the eve of media days at the Los Angeles auto show that they intend to establish the BlueTec brand name as the designation for particularly clean, highly fuel-efficient passenger cars and SUVs with diesel engines. With BlueTec, each of the manufacturers involved will be working on its own technical systems for meeting the world’s most stringent emission regulations. The latest J.D. Power study, “Global Outlook For Diesel,” predicts that the share of diesels among first-time registrations in North America will rise to over 15 percent by 2015. All three companies say that up-to-date diesel propulsion systems, with their high torque, agility, economy and robustness, and efficient fuel consumption (20-40 percent below gas engines) will be able to comply with the toughest emissions standards in the world.