So, what exactly are spark plugs? They’re parts of your car that are aptly named because they do just that, they provide the spark that initiates the starting of your vehicle. It’s that little spark that gets your car started. In the grand scheme of things, they’re very important. Without them, it can gradually become difficult to start your vehicle’s engine. Putting off the replacement of your spark plugs can eventually lead to damage. So, let’s learn about spark plugs and when it’s the right time to change them.