I remember hearing of Mogas in Germany when I was in the Army in 1968, what is it?
As fas adding oil to airplane fuel it ain't needed Them motors have no valve seals, are loose as all get out and normally and regulary consume from 1/4 quart to 1 quart of oil per hour or higher at low steady state RPM compared to our street and strip motors My Lycoming O 540 C.I. 260 HP would blow the first quart out in a hour if I ran it one quart low from being full, it would blow the next quart out in two to three hours of steady flying if I ran it down 2 quarts from full. It had a 12 quart system stock, I even treid running it down to 8 quarts cold before starting and that helped a little bit more on reducing the oil consumption, but I figure for the price of one quart of avaition oil I would run it at 9 quarts cold on take off for any long trips