Damaged, worn out or fouled spark plugs need to be replaced, more on changing spark plugs. This is because if damaged, worn out or fouled spark plugs are not changed they can cause a wide array of engine problems including hard starts, excessive fuel consumption, misfires and increased emissions. In most automobiles, spark plugs should be replaced after 30,000 miles. Nevertheless, with the help of experts, you can know when and why to change your spark plugs. You also get the necessary assistance when changing your spark plugs because this task requires professionalism and experience. For instance, you need to know about the heat range and gapping spark plugs and have the ability to properly use a torque wrench. Spark plug heat range In spark plugs, the heat range is not related to electrical energy that is transferred through the spark plugs. It refers to the thermal range within which the spark plugs will work. In most cases, a number is used to indicate the heat rating of the spark plug. Some spark plug manufacturers use a lower number to show that a plug is hotter while a higher number indicates that a plug is colder, however, another manufacturer may use a higher number to show a hotter plug and a lower number to indicate a colder plug. For this reason we recommend to always seek out the help of a professional tuner or a spark plug expert when selecting your heat range.
How to gap spark plugs Gapping the spark plugs is very important to the ignition system of your automobile, To do this properly, you need spark plugs, a tool for measuring the gap and a tool for adjusting the gap. Take care and pay close attention, too large of a gap may cause misfire due to spark blow out, too tight of a gap can cause misfire due to an incomplete combustion process.