I hear you on that. I'm planning to use the .3qts to top off mid interval. And Red Line is about 11$/qt.For ease of use (6L vs 5.7L) I'm quite a fan of the fl-400s instead of the stock size. Who wants a bottle of 5-30 with .3qts sitting around lol especially when it is 7+ dollars a quart at times.
This is EXACTLY the information I was looking for. And you answered my next questions before I even asked! You, Sir, are a rock star!...And this PSI measurement has more to do with the difference in 'Oil In' vs 'Oil Out' at the filter, not overall system PSI which can hit 60 to 65psi before the oil pump relief valve opens.