Change to DFI oil or not?

I wont be changing over. Mercury has a pretty dang track record when it comes to longevity and this has been for years and with the Quicksilver and PP. I just dont see the reasoning in paying more for oil when the oil you are using has done an outstanding job for so many years. Just my opinion though.

KyCatFan, you may want to look into that on a 2011 model it may be required for you to run it as not to void warranty.

I think I would read what Don at (Europeanam Merc moderator on BBC) has to say first, and then decide. I respect his opinion and would not go against Mercs recommendation.

I just got off the phone with merc. service. They do recommend dfi simply because they say it is a better oil with improved additives. PP is a fine oil and using it in a pro xs will not void the warranty. I was told all the confusion was internal between merc and merc racing. Pp was “certified”and merc did not yet have dfi “certified”. Racing would not run it until it was. This “certification” process whatever it is, is costly and merc did not want to pay for someone to tell them they had a better oil: they knew they did. A letter went out to all dealers to try to clear this up. I guess I will switch just to follow the recommendation. They told me that I could switch over with no problems; mixing them was ok. This is what I found out, sounds like to each his own.