I, and a friend, installed the new Valvoline MaxLife Synthetic oil in our vehicles within the last two weeks. Both engines, which were running fine to begin with, sound even better...quieter and a considerable amount more smooth. The engine temps have decreased, especially while driving down the highway, and the overall operation feels more refined. Both are Chrysler/Dodge cloud cars with Mitsubishi 2.5L V6's. From reading on this good BITOG forum, I have found the conventional MaxLife to have no Moly (??). This is not so good. But it has stopped leaks, where the Castrol HM hasn't. Being in a little distress with some questions, can anyone please give some comments or information regarding these oils? -Is MaxLife Synthetic a PAO Group IV or V, or a Group III? -Do both of them have Moly? -For the longevity of the engine, should we use the MaxLife to clean out the engine and seal any leaks, then switch back to Mobil-1? -Also, is Mobil-1 the only PAO available at such stores like WalMart? -Is the MaxLife a good choice to extend engine life? It will be interesting getting the UOA on our Synthetic Valvoline MaxLife 5W30. I will post them ASAP, when we get the 3000K. Thanks!!!