Well I purchase my car used in 2005 at 97,000 miles. One year after buying my car, I had to replace my transmission computer which cost around 450 including labor at a Dodge dealership. No huge problems since. Currently, I have a trans leak coming from shift shaft I'm going to get fixed) also problems sometimes with rear defrost and Windows. Now car has 178,000 miles and running ok. I get my tunes ups and oil changes every 3-4000 miles. I'm driving this car till the wheels fall off- can't afford another car payments! Body in good shape. All yeah, gas meter jumping up and down? What's that about when I keep my car on full all the time?