I went to the www.Qpower.com website and noticed a few odd weights in the Q Racing section. 0w5, 17.5w35, 15w50. Have no idea where one might buy the race oils, wouldent use them anyways myself. Anyone in the know of any of the new Quaker state Q oils? Just bought some Q advanced 5w30 fully synthetic, groupIII?, for my next oil change. I'am taking a guess that the pennzoil platnium is the same as the Quaker state Q advanced also.