Charles,
I think you are in the wrong corner of the ring. ASP .52 a gas engine?

In general, it is best to run in an engine using the fuel you normally use, because that determines the temperature balance within the engine. Just add extra oil for the first runs, until the engine holds peak. Then bye and bye reduce oil to normal levels.
In engines below .61, 20% oil is normal, less is walking the thin line.