If you're a DIY enthusiast, chances are, you've got a can of WD-40 in your home maintenance kit. After all, this product (originally a water-replacement product invented in the 1950s) has evolved into ...

In 35-plus years of working on vehicles, I have come to wish I had bought stock in the WD-40 Company, the corporate entity behind the product of the same name. The WD stands for "water displacement," ...