OK, This thread again... 1. What synthetic oil gives the best protection? 2. What are your thoughts on Mobil 1 Vs. Red Line? I've been given 4 quarts of Red Line and I'm a Mobil 1 user. I'm going to use the Red Line next time, but what do you all think of Red Line? It's twice the cost of Mobil 1 does it give twice the protection? Thanks. -Dick- 78 Scirocco Original Owner http://member.aol.com/sailingfc/