I would void using a heavier oil on newer vehilce, the tolerances are too tight and will not lubricate properly.
As for what oil I use, all my toys run on synthetic oil, truck, atv, both engines on my boat.
The oil doesn't breakdown as quick and provides better lubrication when cold and under extreme temperature....also my oil never really stays in long enough to get dirty... I m on the anal end of the service schedule


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