This might help:
http://www.dctfacts.com/information/...ubricants.aspx
"Findings
In conclusion, say leading researchers, new-generation dual clutch transmission fluid additive technologies have been developed that are distinct from ATF and MTF practice; geared to the unique requirements of DCT conditions, the new technologies enable shudder-free service in excessive conditions, longer drain intervals and longer transmission life. These advances come in addition to fulfilling the fundamental requirements of wet clutch friction performance, anti-shudder friction durability, thermal and oxidative stability, load-carrying ability, bearing pitting performance and anticorrosion performance."