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.

TIL the secret formula for WD-40 is stored in a bank vault and has only left it twice; once was on its 50th birthday when the CEO of WD-40 rode through Times

CEO explains WD-40's slick success

WD-40 To Mark 60 Years Of American Heritage With New, Special Packaging - aftermarketNews

WD-40 History, Learn the Stories Behind the WD-40 Brand

WD-40 Lubricant Hires Armed Guards to Move Secret Formula on 65th Anniversary - Scioto Post

The Best Bike Chain Lubes of 2024 - Bikerumor

WD-40 Company Enlists Armored Security to Move Top-Secret Formula to New Location, Celebrates 65th Anniversary

Who Invented WD-40?

What are the best-kept secrets of successful business? - Quora

Fascinating Facts - WD-40 Company

Wd - 40 - Motor Mouth Section - The Mini Forum