Have seen many posts and opinions on this subject, most of which lean toward the OEM oil or Walmart supertech. Have not seen much discussion about brands in the middle. I made a decision to use Exxon Superflo TCW3, it is priced between Supertech and Quicksilver leaning closer to the Supertech price. There is a statement on each bottle of Exxon oil saying "they will pay for engine damage related to oil failure..." Have never seen such a statement on any other oil. I feel comfortable with Exxon and that statement, am looking for input from the rest of you outboard Xperts on what you know about superflo oil, or oil in general. Had an article in saltwater fishing magazine this month about 2cycle oils, rambled on for a couple of pages and concluded by saying its up to you. What a waste of paper and ink...