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I am no longer impressed with the stuff. Nice idea, not enough active ingredient.
Hi TallPaul,
I'm not saying that Castrol has no components that are "attracted to metal", only that I do not find any significant amounts of ester. Castrol is in the fish bowl and their competitors watch each other closely with their fingers on the legal trigger. It would be somewhat foolish for them to make a performance claim that they cannot support, at least to some degree. My inclination is to give them the benefit of the doubt, but tempered by my suspicion of vague and non-specific marketing claims.
Tom