What do you think about motor oils with a very high viscosity index like 0W-40, 5W-50 and 10W-60? In Europe there is even one company that makes a 5W-60.
I think this is a great idea on paper but how well does it really work? I have seen at least three good UOA's done on Castrol Syntec 5W-50 but this still seems to be the oil that people love to hate!
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I think this is a great idea on paper but how well does it really work? I have seen at least three good UOA's done on Castrol Syntec 5W-50 but this still seems to be the oil that people love to hate!