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OIL IN GLOW FUEL
PHOTO BY HOPE McCALL FACTS VERSUS FRICTION A world of difference exists between lubricating oils. Automotive-type 4-stroke-cycle engines have permanent lubricating systems in which the oil is recirculated. Two-stroke-cycle engines pass the lubricant through its components once, spitting it out with the exhaust gases. Traditionally, the lubricant is mixed into the fuel and metered into the engine by the carburetor. The ratio of fuel to lubricant ranges from about 10:1 (10-percent lube) to 3.5:1 (28.5-percent...
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