I had to get an oil change because the dealer fubared doing warranty work and my mobil one oil got changed out, to valvolines full synthetic 5w30. So I am going to only run it for a short 3K change, but I couldnt find much of anything on valvolines full syn on this site. I guess no one even tried it because of the mediocre add pack the durablend has?? I did notice the hate for valvoline in searching posts though.