RE: Fuel recommendation for YS63FZ-S
majortom-RCU,
I have used Magnum I in the past but have never tried Magnum II. Do you think Magnum II works better than I for this engine in terms of idle or they are about the same? If I recall, Magnum I has about 20 to 25% nitro and II has about 30% nitro, so ideally, II should offer better vertical performance, but since I am new with this YS63, and like you, I will be ordering enough for the season, I am not sure which is a better choice.
Regards,
Kevin