Thanks for your enthusiasm about my Intrepid!
1) I used Penzoil 5W-30 and changed about every 6,000-9,000 miles, depending.
2) Nothing special, unless you count driving it very frequently.
3) The single biggest problem I had was with the engine keeping itself cool. Even in it's early days, I had problems with engine overheating, which would kill the thermostat, and then cause instant overheating until fixed. Essentially driving it at 90 degrees or more, especially in traffic, always posed problems. So keep an eye on your temperature gauge.
4) This is a tough question that could take way too long to answer. I'll say that I've always loved traveling and it was a good excuse to travel to places I hadn't been and enjoy driving the car. Then when the Intrepid was in about 500 of the 3142 counties, people told me there was no way the car could do it, so that just added fuel to the fire to make it happen.
I'd love to keep the car, but it's just not financially responsible at this point. It has a transmission issue that no one could figure out either where it jumps to limp mode when too hot until it restarts. Had been running it like that for over a year. It's in okay shape, but just not something I have the time nor money to dump into. I am completely open to a dedicated do-it-yourselfer taking her over and continuing her journey. I will give the car away for $1 to anyone interested.
As for Hawaii, we had a plan to ship it over there and then ship inter-island. Was much cheaper than you'd think (comparable to flight price). Just never came to fruition.
1. Wow! The oil was changed at 6,000-9,000 mile intervals? That's more than I would have thought! Again, that's a testament to just how good those 3.2L engines are.
2. Yep. I am a firm believer that irregular use is a killer of most vehicles. Cars are made to be used frequently to keep them going. You are a testament to that! Your use really kept your Intrepid going!
3. Very interesting about the overheating issues. In a way, I am kind of surprised it lasted that long, given it has been overheating since your early ownership of it. I guess it goes without saying you've had the cooling system flushed before?
4. Haha! Yeah, loving to travel is a good enough excuse. You'd certainly need to, to get it to 642,000 miles! What an amazing adventure! Too bad about Hawai'i though. But you sure showed all the naysayers who said it wouldn't last!
As for the car, I'd buy your car in a heartbeat!
However, getting to you to pick it up is, sadly, not in the cards right now. :( I live far enough away (a two day drive, one way) that getting the time to pick it up would be a challenge right now. Unfortunately, I am in the process of getting ready to move, as well as finding work/residence in the town I am moving to (4 hours away), so my time is pretty tied up right now. That, and I also don't have the room (yet) to keep another car. lol I'd be honoured and would LOVE to own your car, and get all the bugs ironed out of it to try to get it to 1,000,000 miles, but unfortunately my free time and space is tied up at the moment. Again, I'd take it in a heartbeat and take good care of it. I love both your and the car's story/history. Ugh! I wish I could take it! :(