ACDelco Spark Plugs. WARNING!

Syleng1 said

RRR-
Audi owners are just a very specific car owners. I thought they used NGK plugs. Delco plugs are just off the shelf run of the mill plugs. I don't mean any harm in that question. I realize any plug will fit but it does not mean it is the “right plug.”
Just asking. I’m allowed to do that here right?

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Well sure. No Delco plugs are not just run of the mill plugs. Neither is any of the rest. Here is the fact about plug brands. As long as the plug matches the original intended heat range, thread size, length and fitment, brand does not matter. Consider this. There are only about three factories in the world that make spark plugs. From there, the plugs are branded or rebranded. So, chances are someone's beloved NGK was made by the same factory that makes Champion plugs. People will argue over plug brand until the end of time, but that's the facts, jack.