Quote:
Originally Posted by lanbrown
It still is a problem. The US based synthetic oils that Castrol sells cannot be sold as synthetic anywhere else. It comes down to what Castrol views as a synthetic oil, not how it is marked on the bottle. Their view of what a synthetic oil is different in the US compared to the oils they produce in Europe.
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You probably have better knowledge on this. Looks like the one recommended for the diesel is a real synthetic, probably that is why they call it "Proffesional"
