I've been working on an Eddie Baur(sp) '03 that a kid who works for me has. He has done no maintenance since he bought it and we just changed ot the factory rear pads and rotor. Considering all the neglect he heaped on that thing it must be pretty well built..just to be running at all.
Now my neighbor across the street is a ford family and they have two older explorers a 13 f250 and a 12 focus. He just had to replace the engine on one of the explorers. It just started knocking real bad, no warning, no abuse...he still isn't sure why, he just paid 2.5k for a rebuilt and called it a day.