I did that because I figured it would get people’s attention. Some people have an absolute obsession when it comes to oil changes and I just thought I’d share this experience. I change oil more regularly in most of my cars but not as often as most people do. Fact is I indeed bought the Lincoln with 50K miles on it and did in fact only change the oil 3 times by the time it hit 270K. The engine quality has a lot to do with it. If it is a good engine by design and assembled properly the oil will last longer. My Father-in law owned limited hydroplanes and built his own engines. He had one that Steve Reynolds drove that ran an entire season without an oil change.