Yes, I saw that Ksquared was kind enough to send me a link to a post he had started. How to check the oil is a very complex question indeed. I shall copy all of the notes and have an engineer friend of mine explain it. Way over my head!
Excuse my dumbness but, I am new to this sort of thing. I have a 2006 Rocket 111 and a 2003 Harley 883 Sportster. Hoping to learn something exciting from the people on here.