What Is the Difference Between Wd-40, 3-In-One Oil, and Motor Oil? #Video

They all look similar. They're all used on metal. And they're all found in garages and workshops around the world. But despite their similarities, WD-40, 3-IN-ONE Oil, and motor oil were designed for completely different jobs. In this episode of History of Simple Things, we explore the fascinating history, science, and engineering behind these everyday products. From the invention of WD-40 during the Space Age to the century-old origins of 3-IN-ONE Oil, and the complex chemistry inside modern engine oil, you'll discover why choosing the right lubricant matters more than you might think.