Out of interest, and this is something that I have always wondered when seeing string verdicts and opinions on oil, by what measures do you conclude whether a given oil is good, bad or indifferent?
Are you monitoring wear over extended periods and comparing brands, going off basic economy / performance, time between oil changes, resultant problems and issues or what?
I'm not trying to call you out all talking rubbish, I genuinely am interested in how people reach definite opinions on something which is seemingly difficult to interpret.