OK here is the story, I changed the detent spring last year changed the oil same time of course let the bike run 5-10 minutes check lvl again looked good. no oil under the bike no oil in the coolant and no oily crap on the exhaust another **** mystery right, (the other is why I'm burning out R/R) no need to check the oil often. I'm thinking it's a issue from when the US backed out of switching to the metric system. turns out 6.4 litres (liters) = 5.5 quarts