Paul,
Aviation oil has no detergents in it.  It does use an ashless dispersent
formula, tho, to hold dirt in suspension.  The oils used in autos may foam
at high temps and altitudes.  Also they are totally usless in an aircooled
engine the size and design aircraft use.
If you go to your local petroleum distributor of aviation fuel and oil there
is a very good chance you will find a video put out by Shell on their oils.
It is free and is very informative.
Good luck,
Walter Dodson  1895740 IA,  IV-P  95%