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

MMO recommended gas engine fuel tank mix is only about 4 oz  to 10 gals gas or 'bout  0.3% ...The same ratio is bout 1drop per 15 ML gas tank-full , which i think is a good upper cylinder light lube + it's 25% White Solvent content for piston, head & valve cleaning while it runs ! ....Agree, the correct way to properly lube any "open crankcase, lost lube" 4 stroke engine's  Rings, piston & cylinder is with a cylinder drip oiler just like the full size oldies do while keeping the Combustion chamber side running just clean burning Coleman gas....Did you see my post on "Low tension, gas port style rings" ?  ...Your earlier, Teflon piston ring posting deal would probably work real good with the Piston Gas Port style, low friction drag, high gas sealing, hard smooth Teflon rings.  Teflon riding on a thin oil film from cyl drip oiler sounds ultra low drag slick !!