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Just to play devil's advocate, what happens if Shell decides to quietly include an additive that's harmful to MCs? I'm not convinced this is a smart way to save money.



I really don't think shell is going to do that, they are well aware of rotella's use in motorcycles and while they do not endorse it, they have done testing to ensure it meets manufacturers' specifications.

Stewart ....... "It's outside your field of expertise." "Poppycock normally is."