Wow those photos took alot of planning, and risk at 150mph!!!
So you changed the oil and filter about 38 times, that's approx every 5000 miles. Interesting.
Most of my cars, I change oil every 4 months about 3-5K miles. This car had a 15000 mile interval. So I have been changing it once a year 10-12K. After this thread I think i will just change it along with my other cars every 4 months.