It might seem like a simple task to some, but spark plugs can often be overlooked during routine maintenance. Checking them is just as important as changing your oil. Not only do fresh, properly gapped plugs improve the performance of your engine, they can also tell you a lot about how your car is running. You'd be shocked to see how much build up you can find on your plugs-kind of like flossing your teeth. You do floss your teeth, don't you? The procedure is quick, easy, and you could save yourself a lot of money in the long run. Hell, if we can do it, anyone can, right?