aerobat72L
New member
This is something that I have been wondering about for a very long time. I presently use the dealer- supplied BMW oils in my airheads and oilheads. I have a couple of cases of Aeroshell 15W-50 aviation oil. Would anyone know if this oil is compatible with these engines. It is a semi- synthetic AD( ashless dispersant) oil, and the engines it is designed to run in are air-cooled. Any info would be appreciated...Thanx