Price for my Yukon?

[19Yukon97]

Friend has a 4 door that has 500,000 on it and the odometer stopped working 2 years ago.... He daily drives it to work and back and work could take him 2 miles down the road or 150 miles. He also doesnt take very good care of it. Changing the oil every 15,000 miles it hasnt had a tune-up since i think 5 years ago. These motors are tanks and will not stop. The transmissions are known to go out around 150,000 i heard. Some will last for 300,000 plus some might die at 100,000. I would keep it personally... Gas prices will go down eventually.