Readers may have seen an advertisement in recent years that showed a can of WD-40 spray being pointed at a car's gas tank. WD-40's official product description says that the spray can "protect metal ...

We may receive a commission on purchases made from links. Creaky doors, screeching gears, and grinding joints on an automobile bring one product to mind: WD-40. This grease-it-and-fix-it solution, ...

We may receive a commission on purchases made from links. WD-40 was developed in the late 1950s by the Rocket Chemical Company as a rust preventative for the aerospace industry. The letters W and D ...