Quote:
Originally Posted by BanjoDude
Interesting. Two of the plugs I got are made in the USA, two made in Mexico, and four made in China. Should I take them back and at least get all 8 from the same plant? If there's a significant variance, it seems like that could have a couple of cylinders running hotter than the others...
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Anyone have thoughts on mixing and matching the same model plug from different eras/plants? Seems like it would essentially be the same as mixing the same plug from different brands, which I know is not a good idea. Perhaps I should return them and buy a set of NOS off ebay?