The Dodge Intrepid models from 1998 to 2002 gained a reputation for catastrophic engine failure. The culprit of this premature engine failure was a build up of oil sludge, most commonly caused by engine coolant leaking into the oil supply. Although a large percentage of these engines continue to suffer from problems related to oil sludge, there are some simple preventative steps that can be taken to make sure this doesn’t happen to your car.
Understand that preventative maintenance is the key to winning the battle against sludge. You will need to change the mentality of “if it ain’t broke, don’t fix it.” Waiting until there is a problem can be waiting too long, because engine failure happens with virtually no warning. Taking care of problems in advance is very important.
Use high grade gasoline in your car. When you use a higher grade of petroleum, fewer impurities and pollutants enter your engine. Over time, this reduces the amount of carbon build up and other grime in your engine, which also reduces the likelihood of developing a problem with sludge.
Switch to synthetic motor oil. Synthetic oil is generally cleaner than traditional motor oil, and also serves as a better lubricant through some of the narrow passages in the Dodge Intrepid’s engine. Being a cleaner oil means less grit and grime developing in the oil. Some of the higher quality oils, such as Castrol or Mobile One, will actually clean away old grime over time.
Change your oil frequently. You should change your oil once every 3,000 miles, or ever 3 months, whichever comes first. Also change the oil filter at the same time. The manufacturer’s instructions may recommend oil changes at 5,000 or 6,000 miles, but this is really not adequate for the 2.7-engine that is used in most Dodge Intrepids. Because the engine has a known history of sludge problems, you should take the initiative to change your oil more frequently.
Change your water pump and timing belt. The Dodge Intrepid has a timing belt working with the water pump. If the belt fails, it will damage the water pump and cause a leak, or sometimes the pump just develops a leak on its own. This is the number one cause of engine sludge in the Intrepid. Do not wait until there is a problem to correct it. Preventative maintenance is key. You should replace your timing belt and water pump every 75,000 to 100,000 miles.
