You don't have to be a mechanic to spot a leak. In fact, sometimes you don't even need to see it -- you can just smell it. Oil and antifreeze are the two main fluids you want to make sure aren't leaking out of your engine.
No we're not talking about dressing etiquette. We're talking about the rubber belts on your engine that run all sorts of vital components. The function of a belt can vary from car to car, but some of their main responsibilities are running the fan, water pump, alternator and air conditioner. You don't need to know what all those things are, but you do need to know that the belts on your engine run at least some of them.
We mentioned earlier about how the fuel filter protects your engine from harmful sediment and particles in the gas. The fuel filter catches any particles or debris that would be harmful to the engine and keeps it trapped in a canister, much like your oil filter does.