Now that Valvoline ditched the sodium for all applications, is it safe to say that they are equal to The other big-name oil brands? what kind of results are people seeing with this new Advanced full synthetic? I was thinking about picking some up. I was always hesitant of the previous synpower, it seemed like I had increased engine noise in my LS1 with that stuff. I always figured it was the sodium, because when I ran moly based oils the noise was gone