I'm with you on oil & oil filter changes. Cheap insurance! As I told some people on another blog...my car, my cash = my choice. Prior to Mobil 1 synthetic I ran Castrol 20W-50 when that came out. Then Mobil 1 synthetic 5W-30. When I started all they had was plain 30 weight oil.To be honest... I owned about 50 cars of all descriptions. None have ever burned any oil except perhaps an older Chevy where I ran them long distances at high speed. That amounted to 1/2 qt per oil change. Many had high mileage when I rolled them. I feel it more important to focus on frequent oil changes vs. the brand of lubricant. I my older MC I changed oil every 1500M until syn oil became available. I have a restored '69 Bonneville 650 and I run syn oil in that. I used to do oil analysis and found that regardless of the oil, fuel dilution happened. It's so cheap to change every 3500. I pay $16 a jug and buy factory filter in bulk. Total $21. With an oil change value, I am looking at 15 min.
Now I may have to change my habit to 5000 miles or 6 months. I haven't been doing it every 6 months but every year or 5000 miles.