In a moped equipped with a two-stroke engine, what substance must the gasoline be mixed with for it to run properly?

Question

DentroTest · Accepted Answer

Two-stroke engines lack a separate lubrication circuit with a closed oil crankcase like that of four-stroke engines. For this reason, they need the fuel itself to contain a specific proportion of lubricating oil mixed with the gasoline. This oil lubricates the piston, the cylinder, the crankshaft and the connecting rod while the engine is running, preventing the moving parts from seizing. Substances such as alcohol or benzol have no lubricating properties and would seriously damage the mechanical components.

In a moped equipped with a two-stroke engine, what substance must the gasoline be mixed with for it to run properly?

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