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It's one of the most recognizable names on any garage shelf, under kitchen sinks and tucked into most tool belts. And for years, its hand-written secret formula has lived in a San Diego bank, a place where many know its location but few can visit.
It’s one of the most recognizable names on any garage shelf, under kitchen sinks and tucked into most tool belts. And for years, its hand-written secret formula has lived in a San Diego bank, a place where many know its location but few can visit.
WD-40 enrolls armed security to move its 'secret formula' after 65 years
A Magic Oil Called WD-40
Acts @FACTS The secret formula for WD-40 is stored in a bank vault and has only left it twice. One of those instances was on it's 50th birthday when the CEO of
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