Car maintenance is something that everyone should do on their vehicles to keep them performing in tip top shape. This person was talking to me one day saying they have not had their oil changed in OVER TWO YEARS! Now oil is basically the lifeblood of your car. Keeps everything well lubercated so nothing seizes up. It is something that should be done in intervals of at least 5,000 miles. (That is what I have been doing mine at.) But two years is something crazy. It also gave me the chance to test out Amazon motor oil to see if it would hold up. Everyone in the car world have been bashing on them but now I had the perfect gueinea pig to test on. To see how it would hold up. I mean, anything is better than oil that is over two years old. Couldn't image what the inside of the oil filter looked like. So far, so good on the Xterra with the amazon oil in it. You can watch the video here if you would like. I'm just glad I was able to help a decent SUV live a little bit longer.