Originally Posted by semtex

this discussion is silly. None have mentioned UOAs since this thread was brought back from the dead. Use whatever oil floats your boat. If you don't hear any valve ticking, then so far so good. Next step is to send a sample of your used oil to Blackstone Labs [or UOA site of your choice] for a UOA (used oil analysis). If the results are to your liking, keep using whatever. If you think you can get better results with a different oil, then switch to different oil. Repeat steps above until satisfied with the results (i.e., no valve ticking and good UOA numbers).