Sorry, but I don’t buy into this. To each his/her own but I know a lot of people in racing, diesels and performance related and everyone is agreement, it’s all a bunch of hupla over nothing. Would I buy anything that says “motor oil”, of course not, but do I believe Mobil 1 synthetic is better for my wife’s RX350 over Kirkland synthetic, NOPE. Anyone can say their additive makes their oil better, but go find a chemical break down .PDF of their additive. You can’t because they all claim it’s a “trade secrete“. I’m not against “brand” oil, just saying it’s not a bad idea to consider what the difference is, and if you have no evidence of what they are adding is there really any difference?