GM says put in 5w-30, so I use 5w-30. It performs the same at all other temps as 10w-30, but I'd rather get the oil sooner in the winter than trust a film.
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09-09-2008
GM says put in 5w-30, so I use 5w-30. It performs the same at all other temps as 10w-30, but I'd rather get the oil sooner in the winter than trust a film.
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