Nowadays, when we rarely pop open the hoods of our cars on our own, and the only things we usually worry about are putting in the gas and taking them to the dealer or the mechanic for their scheduled maintenance, we can hardly fathom what goes on inside those modern engines.

This wonderful video, made in 1937 by Chevrolet, shows how a typical engine was lubricated and is guaranteed to amaze you. I bet you had no idea that an engine we think of as primitive, given its almost 100 years of age, is so complex.

At the same time, the video will give you a new appreciation for what goes on inside your car’s engine. I bet it’s even more complex now.

Are you inclined to take your car for granted now? It is a marvel of modern engineering, isn’t it?

If you’d like to see more videos like these, subscribe to the US Auto Industry channel on YouTube.