Tip - How to Replace Spark Plugs in a Dodge Intrepid | eHow

The Dodge Intrepid engine uses platinum tipped sparks plugs. These spark plugs are designed to last 60,000 to 100,000 miles. The Dodge Intrepid comes with three different engine choices: 2.7 L, 3.2 L and 3.5 L. All three engines require the same basic process for replacing spark plugs.