Quote: I use BRADD PENN oil in my B1 its 10w30 and has all the zinc in it that they(government)took out of reg oils. i get it here in dayton,ohio from a bulk oil company--i buy it by the case for like 4.80 a quart.
So, is it just crude oil w/additives or syn?
To help answer your question, is it synthetic ? here is a picture with desciption of the oil I use. Hope this helps. Ken