So am I the only one who went out and purchased 20 quarts of Mobil 1 0W-20 when they heard it was discontinued? Anyway, add me to the list of people who started doing their own oil changes after a really bad experience at the dealership. So far I've only managed to ruin one old t-shirt in the process, but I'm saving money and I honestly feel I am doing a better, more careful job with my own oil changes than the dealer did. Best of all, this gives me the opportunity to take oil samples during the change and send the oil in to someplace like Blackstone Labs for analysis. I've got one of their sample kits right now actually, waiting for about 1000 miles until I'm due for my next oil change, then I can take a sample and send it in to see how it looks.