Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

I have found the same as you...the less MM oil in my Zippo fuel, the stronger my "Hits" are....I have never gone as low as 1 drop per fuel tank...my lowest was 3 to 4 drops,...BUT....I feel 1 drop may be just fine. I want to add a functional drip oiler to the piston/skirt/bore first...then drop my fuel mixture to less oil content...every time I pull my head there is quite a bit of MM oil in the combustion chamber...as others have stated it does not seem to burn up so it seems to hang around for quite some time....AND reliable Strong Hits are very desirable when tuning for slow run.