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It's surprising Marvel oil was never approved. As a kid, I remember Ozark Airlines having drums of it for use in the DC-3s big radials. I swear by it, and feel it really helps prevent stuck valves. I use it in both the gas and oil. My personal theory is that it somehow breaks down sulfides, but I can't prove it. Artie ========================================================================== ==== To leave this forum go to: http://ercoupers.com/lists.htm Search the archives on http://escribe.com/aviation/coupers-tech/
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