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URL:  https://boards.fool.com/that-reminded-me-of-an-old-test-of-stp-the-34236855.aspx

Subject:  Re: Regular vs. Synthetic Oil Date:  6/25/2019  2:01 PM
Author:  wecoguy Number:  73689 of 73826

That reminded me of an old test of STP, the additive of the 60s. Take a screwdriver, and dip it in motor oil, and then hold it by the tapered tip. Pretty easily done. Repeat it, but use STP instead... Impossible to hold onto that same screwdriver...

Not sure of their current product lines, but my gas station owner buddy was convinced, had us all using it at the time...
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