When my Contour got to 100k miles, all hell broke loose.
Before 100k only gas, oil and tires. Afterwards, lost the alternator, then waterpump, then air conditioning, then brakes, then transmission. All the while it ran Mobil1, DMD, Meguiars wax, etc. Well the body and the engine run great, but the tranny is done, its worth very little.
I hope you have better luck.