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There is so much bad advice and horrible disinformation in this thread. It should be sent to The Abyss.
That's the problem, the more posts there are, the more the consensus disappears. I don't know what the best advice is on this topic, and I have read past posts over the years as well. Also, I'd like to see references to the stuff you can get at the local advance auto or pepboys. I rarely order the technical hard to find stuff for anything, unless absolutely required.