I would like to see the result of the oil analysis. When I had my Mini, I was reading the forum religiously and everyone who sent their oil in for analysis said that the synthetic oil is good for 10,000 miles + on normal driving. Some people who track their Mini has to change it every 5000 miles. I did the first oil change at 5000 miles on the CT just to be safe. After that I got the 10000 miles and 20000 miles oil change. Also I drive over 500 miles a week, so 10000 miles is only about 4.5 months. I don't feel too bad about changing the oil every 4.5 months.