Discovered this site a couple of weeks ago and like many other I'm hooked. For years I tried to learn the facts about Auto lubrication, but soon discovered that many "authorities" were simple repeating what some else told them ad infintium. Reminded me of William James quote the faith was simple accepting anothers belief. Anyway are these impressions correct: 1. Other than extended OCIs, a good dino(havoline)will protect an engine (as regards wear) as good as a synthetic. 2. Any Dino with the Starburst signia will do a good job. 3. There is no good proof that putting synthetic for the first oil change is a bad idea. 4. A synthetic might be recommended for my brand new WRX (it my first fun car) because of the turbo. Hope I didn't break any rules.