All brands have marketing to consumers and business. Castrol originally competed against M1 with their name Syntec. The rest including Castrol keep changing their names to market synthetic oil. Now M1. They’ve always stayed the same with their M1 marketing Always been Mobil 1 with the 1 in black against a grey bottle. The rest. Change x times a year it seems. M1 also spends billions on pushing to OE Mfg as far as factory fill. Etc. I know on this forum, we all know M1 and Castrol. I myself...
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