I changed the oil in my primary. I have a 2007 street glide. The book says it hold's 38 ounces when doing a wet clutch service. That means just drain and refill. I did exactly what the book said and had the bike resting straight up. But when I filled it it only took one quart and the oil was just touching the bottom of the clutch basket. So I didn't put the extra six ounces. I don't mean to be so critical but I don't want to hurt the clutch and this is my first Harley and I don't know a whole lot about the clutch service. I read a lot of posts in the oil section and it seems if the oil is touching the basket that all it needs. So am I OK or do I need to add more oil??? Thanks for the help. Oh ya by the way I used mobil1 synthetic 75-140.