 I bought my Explorer with 46,xxx miles on it. Now at 146,xxx miles, I've grown really fond of almost everything about the truck.  Except the fact that I've had to rebuild the transmission twice! It went out once right before 100,000 and again about 40k later!  The moonroof leaks pretty bad, too. It's treated me great otherwise, but I'm sick of replacing the transmission and the 18 MPG, too.