Remember we have old cars here as well, Holdens, Fords, Toyotas, all ran probably on 20w50 most their life. Cars are still maintaining their fuel eco specs as well from new with the 5w40 and above. As Chainsaw said, Fuchs are the only one with the 20w oil and i have never seen a bottle of it though.
Only beef i have is we pay alot for good oils, Group 1 still used extensively, even in the SM stuff. But cars still lasting long time, as they would have in U.S on the older gear.
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