Sorry, Mr. Fixit, I did not see your post before I started my diatribe. You may be able to buy a non-detergent motor
oil from some backyard blender, but not from ANY major supplier of engine oils today. The spec has been obsolete for years and you should never use a non-derterget
oil and any engine for any reason other than to screw it up big time. That includes "break in" or whatever.