15级油动翼龙发动机保养（OS发动机生锈了）

影子的影子

Any fuel left exposed to the air for even just a couple of days is probably ruined and will greatly increase rust and corrosion inside your engine.

corrosion, crankcase, crankshaft, fuel damage, bearing failure, O.S.  
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corrosion, crankcase, crankshaft, fuel damage, bearing failure, Saito.
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Here is a breakdown of the damaging effects that glow fuel has on your engines:
1.  Methanol is hygroscopic, meaning that it readily absorbs water from the air.
2.  Nitric acid is a main ingredient of nitromethane and it is a highly corrosive mineral acid.
3.  Nitromethane is classified as an oxidizer in the presence of water and oxygen. The bottom line is that it works to change the state of steel and aluminum (rust and corrosion).

Q:  What Can You Do To Reduce These Damaging Effects?
A:  Your best defense against the destructive oxidizing process is to run your engine dry at the end of the day, pull the fuel feed line from the carb, and attempt to start with the glow driver attached. Then add several drops of quality after-run oil into the open carb and turn the engine over several more times without the glow driver attached.