I changed the oil in the Insight for the second time, after 6 months and 11 days at 15,175 miles. I ran a MicroGreen filter and the recommended Mobil 1 0W/20 high fuel efficiency oil. So the total costs are $15 for the filter, $20 for 4 quarts of oil, $20 for labor, and $35 for the analysis. A $90 oil change is expensive, but this diagnostic report gives me valuable information and tells me I can go for 20,000 miles next time. Obviously, Bob says 16,000 because it’s not his car on the line.