RCGF Stinger 40cc Twin RC Gas Two Stroke Airplane Engine. Authentic RCGF Engines! The New Stinger 40cc Twin is the latest design. Type 2 cycle piston valve type gasoline engine for airplane. Lubrication Oil : High quality fully synthetic 2 cylinder oil such as Motul 800 2T 100% synthetic racing motor oil, Red line two-stroke racing motor oil, Stihl Ultra high performance 2 cycle fully synthetic engine oil ETC.
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