WD-40 secret formula lives in a San Diego bank vault

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 secret formula lives in a San Diego bank vault

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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

Secret recipe for WD-40 is kept under lock and key

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 WD-40 rode through Times Square on a horse, wearing a suit of armor, with the formula in hand

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WD-40 secret formula lives in a San Diego bank vault

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