Page 4 of 7Important Notice: All Porsche, no Oil Additives, will void warranties.This may be a sensitive topic however I wanted to share this, which Porsche factory supports and magazine readers are finally listening to.Warning: no oil additives are recommended or warranted for use in any Porsche vehicle (ZDDP Zinc or Moly). No Current Vehicle manufacture supports this practice as well. See Tech Notes: pg 26-28, Excellence Magazine April 2010 issue (Fantastic Magazine). I have had this question come up so many times, in my line of consulting work. "If you have a weak table, why put something else on top of it". meaning Addatives."It is better to go with a better built Table, engineered to handle the added stress".Look for the 100% Synthetic Oil label, not the Bogus "Full Synthetic" hocus-pocus label on the lubricant fluids you purchase. "Fully" means more than > 50% laboratory made (synthetic) polymers but less than < 99% and other stuff (mineral oils).