A few weeks ago, I wrote about knowing how to change a tire and change your oil but that isn’t all the mechanical knowledge you might need on a homestead. It really helps if you also have a basic understanding of how an engine works.
You could just call up a mechanic or get a tow truck to haul your vehicle, truck, tractor, etc. down to the shop. If you know how to do some basic repairs, you won’t have to spend the money on the mechanic or the tow truck and you’ll save yourself the downtime too.