ORIGINAL: Jim Thomerson
The problem with Marvel Mystry oil is in long term storage. Over time the volatiles evaporate a leave behind a hard red crud. I like the smell of Marvel Mystry oil, and sometime use it; however, for long term storage I like Rislone. A Risloned engine will be free and ready to run after 20 years in the shop drawer.
Which Rislone oil would you recommend? I just popped on to the Bar's/Rislone products website and there are a number of oils.