Buddy of mine took his XL7 to an indy and was always spot on at oil change time. Scratched my head, because he was always a quart low when I did it. Turns out it was overfilled preemptively. I started doing the same on that thing, perfect every time since .I would imaginge if overfilling an oil sump by 1/2 quart was a huge problem, we would hear about it.
My IS250 wound put a solid quart of fuel over the winter at times, no issues related to that, other than draining the oil via PCV at WOT