so i see people here like amsoil and mobile one, me i like shell rotella.
but thats not here or there, this is a question of why some like oil mixers as opposed to oil refinery companies.
companies like amsoil, valvoline, royal purple or store or manufacture band are mixers, companies like moble, shell texaco are refinery.
the differance is mixers will buy oil from were they can get the cheapest (generally not top tier) oil then mix in their additives were when you get a refinery oil it is top tier.
but thats not here or there, this is a question of why some like oil mixers as opposed to oil refinery companies.
companies like amsoil, valvoline, royal purple or store or manufacture band are mixers, companies like moble, shell texaco are refinery.
the differance is mixers will buy oil from were they can get the cheapest (generally not top tier) oil then mix in their additives were when you get a refinery oil it is top tier.