How often to change spark plugs jeep wrangler?

You should change the spark plugs in Your Jeep Wrangler every 100,000 miles according to Jeep. You should still inspect Your spark plugs at least once a year though to make sure that they are free from damage and properly gapped. If Your spark plugs get built up with carbon on them that means that they will not spark as efficiently. This can lead to mIS Fires in the engine which You will be able to feel while You are driving. Always make sure to keep up with the regular maintenance on Your Jeep to help the engine last longer. Excessive wear and tear can lead to the engine failing prematurely.