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Most everyone is missing the point of the OP when he’s asking if he needs to have this newly installed oil replaced because of the grade. He does not need to and can safely run this oil through the summer, at least. Would a 0w40 or 5w40 be more ideal, yes. But, he can put that in in the fall. And advise the shop to stick with that going forward. He’s does track and will benefit from the extra viscosity.
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