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i have just bought a saab branded turbo oil. marked long life fully synthetic. i am not sure about it as the rating is 0w-30. cost 32quid for 4 ltr. would you use it?
I'm sceptical about the science behind this. I know that switching to a 0W oil after you may have been running a thicker density can cause some problems with leaks. If the parts from new are properly toleranced then I see no reason why the thinnest oil (=lowest friction) should not be used.Originally posted by Alex_S:
The conscensus from turbo specialists that I have spoken to in the past is that 0w oil is not to be used in turbo charged cars...[/b]
The Mobil 0w synthetic oils predate the Zetec engines by some 15-20 years...The 0w oils were created for use in engines with very large tappets (ie Ford Zetec) which obviously need the oil to reach the tappets very quickly from starting.[/b]