I think work man pay is higher over there.I've run 15w40 for years when temps are mild.And only syntheic during winter. It a market gimic to covince people to spend more money on these new oils.No one with any brains would let oil stay in a engine 10,000 miles.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran, deutschland deutschland uber alles uber alles in der welt