I have been under the impression diesel oil will foam up in the pan at higher rpms...Also, heard from the same diesel mechanic that diesel oils are going to change in 2007/2008 like regular oil has.
I have been running VR1 10w-30 at a case price of 38$ from PAM. I'm sure lucas, Royal purple or amsoil sell an engine oil supplement that could be added to regular oil that would have the additives.