Crenwelge....I was just pointing out that I also use Marvel Mystery oil along with "liquid lead". Some people do not realize that it will work in gas and or diesel. We have used both in tractors, cars, trucks, and stationary engines. I use "liquid lead" along with 89 octane in my 235. Its all a matter of personal choice, life is short if it makes you feel better then why not! T/C Steve