Originally Posted by bluesubie
A little too much break-in noise to say much about the UOA IMO. I don't know why this oil doesn't get much respect. Decent moly, calcium, boron, and ZDDP. A little bit of shearing to a 30 weight but that's not unusual.
When the dealer/ tech did the oil change, I asked what he was going to use, and he said the " Castrol Syntec 5w-40 " and I asked why he wasn't putting in the Subaru Synthetic, he replied with the hot summer and turbo that he suggested 5w-40 and it would be documented.
I do a 50/50 highway commute that's 25 miles. And I drive the car WOT after a full warm up. I dont beat on it, but definitely get into boost. No redlining, for whatever that's worth. Just to give some insight on my driving habits.
Will post another report in the fall when I run the RT6 for a while. Subaru OEM filters.