Appreciate the comments, esp those below. Spot on.
Also, the overall test results for both Red Line and Royal Purple were not as good as Mobil 1 and Castrol. I highlight this because both RL and RP tend to be the "darlings" in most automotive forums along with Amsoil.
It is an important highlight because it shows that off the shelf oils such as Mobil 1 and Castrol can perform as well if not better than boutique oils like RL and RP at less cost and thus there is no need to chase such oils as there is no marked difference except increased cost for less performance.
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