????? M&H did no such thing with Napa Gold, and never owned by "mahn hummel", Accurately, until relatively recently and for a long time, Napa Gold spin oil filters were made by Wix. Actually, they were the same filters as Wix labeled, and made in Gastonia NC. Now Napa has made a decision to go with a different "Gold" oil filter supplier, Premium Guard which are offshored. A Napa decision, not M&H.....And mahn hummel bought napa gold and outsourced it for cheap labor.
As for topic, @bullwinkle list looks pretty comprehensive.
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