Nice one and great piloting there.
I’m a big fan of learning all you can about your airplane. Aircraft systems are one of those things that will continue to come up over and over not just in flight training but in your real aviation endeavors.
If you own an airplane, using the right oil and knowing when change it are some of the most significant things you can do to keep an engine running to (or beyond)
Changing your oil on a calendar schedule as well as a flight hour schedule helps ensure you get contaminants out.
Great flying @ngos