One of the smallest yet most important parts of your car, truck or other vehicle is its spark plugs.Spark Plug MaintenanceIn order for your vehicle to crank, it must have working spark plugs. Since spark plugs are so simple and inexpensive to replace, there is really no reason for any vehicle owner not to complete this basic maintenance. Every part of your spark plugs is important in order for them to keep working, so you will have to replace the entire spark plugs when the time comes. If you are having trouble getting your vehicle started, the spark plugs might be the culprit. You can usually tell if your vehicle needs new spark plugs because your vehicle will either refuse to start or will have a difficulty starting. Although you may be able to determine which spark plug is causing the issue, it is important to change all of your spark plugs at one time.You should not wait until your vehicle is giving you trouble before replacing the spark plugs; spark plugs should be replaced before they ever cause an issue. How often you should change your spark plugs depends on your vehicle and the type of spark plugs that you have, so you will want to consult the manufacturer's instructions in order to determine how often you should change them.Best Types of Spark PlugsAlthough any spark plug that fits your vehicle will work temporarily, it is best to spend a few extra dollars in order to get the best spark plugs that you can. Even high-quality spark plugs are inexpensive, and they last far longer than the more expensive types do. Different spark plugs are available to fit different vehicles, so you will have to check online or with your favorite auto parts store to see what options are available for you.A standard spark plug that is made from copper might only last for up to 20,000 miles, so this option should be avoided if possible. Stronger spark plugs that are made from titanium and similar materials can last for years, although you should not procrastinate on changing them either.