exactly.To me, it’s high rpm that creates the heat in oil, requiring a higher grade to compensate for a loss of temperature related lower viscosity. The rest is just the European efforts to produce a good oil. They have their pride and don’t feel like bending over to the USA, which by the way is subject to gas mileage requirements promoting the use of lower viscosities.
and the Euro's have their own emission and environmental standards and other things they tend to force down their own citizens throats.
worth saying those people don't drive as much as Americans do nor is car ownership rates as high as they are in the US..
The Europeans actually have viable public transportationsystems. LOL.
in general it cost more to use a vehicle in Europe so car ownership is for wealthier people.
For example I saw recently that Germany outlawed washing of vehicles at home.
You have to pay to wash your car at an environmentally conscious business for a small fee.
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