OS FS-30 four-stroke model aircraft glow engine has a rear-mounted updraft carburetor. Helix gear-driven camshaft. Ball bearing-supported crankshaft. Bronze bushing-supported camshaft. Ringed piston. Two year warranty. This product includes one FS-30 four-stroke engine. #F four-stroke glow plug. One muffler w/header pipe and instructions.

Fuel: 5%-15% nitromethane with 18% lubricant. Synthetic, castor, or a synthetic/castor blend may be used. NOTE: Certain four-cycle fuels cannot be used due to low oil content. However, SOME four-cycle fuels such as the Wildcat 4-Cycle 15% may be used because it has a 18% oil content. When choosing fuels for this engine, the modeler must be sure to select a fuel with at least a 18% lubricant content.