Both the engine types, if hi-filled, tend to overpressure the crank case. The optimal location I have noted is around 8qts (l) with a 9qt dipstick (actually 10 if you have the oil filter kit). At this the use rate is lower, but keep it above 7qts, so plan the filling for longer trips of around 2-3hrs, especially for newer engines which use more while bedding in with S100.
h-r
