Originally posted by 97 sport platinum:
i also disagree...waiting till 100,000 miles to change the plugs, wires, and coolant seems extremely optimistic. hell i only had 55k on my OE equipment when all of the above was changed (additionally all belts, hoses, and water pump with tensioner/timing belt, damn 1st gen 3.5, hehe) and my car started, idled, and drove better. better performance? no way. smoother engine? very much so.
[ December 29, 2001: Message edited by: 97 sport platinum ]
Now I can't speak for the 1st generation Intrepid because I don't have one...but the design specs for the 2nd gen are that the plugs go 100K, there are no wires to replace, and coolant is also designed/spec'd to go 100K.
Having said that one should note is that you can't go wrong by doing it early. But is it necessary? That depends on a person's comfort level at whether the car is performing as expected. Certainly, the way one drives it should also factor in to the level of maintenance peformed.
One example of this is oil change interval. Reading the owner's manual, there are 8 tests for whether or not to change the oil at 3K miles/3 months. I'd be willing to bet that 95% of the drivers don't achieve any of the tests. If this is the case, we'd all be changing the oil at 7,500 mile/6 month interval.
Now, my personal feeling is to change it at the 3K mark even though I don't hit any of the tests. Is this inconsitant with my previous reponse...yeap. It's something that is to me is cheap insurance.
I guess it all boils down to economics, personal judgement, time, effort. And of course remember, there is no law or whatever to say to do things early...just don't do them late. ;)