This is my first engine run using some home blended fuel. The Airplane is a Bridi Vagabond I scratch built, and the engine is an O.S .40SF with ringed piston. My home brew contains Methanol with 18% total oil content using Klotz 80% synthetic/ 20% Castor and 10% Nitro with a squirt of Armor All to prevent foaming. It ran like a swiss watch and the idle was subperb. I had to do a bit of fine tuning to adjust to this fuel because I had previously always ran 100% synthetic 15% Cool Power.
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