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A2Difficulty 3/5

In a petrol motorcycle with a conventional four-stroke engine, how is the engine lubricated?

Correct answer

With engine oil in a lubrication system separate from the fuel.

It requires engine oil in a lubrication system separate from the fuel. Do not add oil to the petrol as if preparing premix for a two-stroke engine. Oil reduces friction and wear and helps remove heat. Check the level and use the oil and service intervals specified by the manufacturer; running without lubrication can severely damage the engine.

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  • It needs no oil to operate.

  • By always adding oil to the petrol tank.

  • With engine oil in a lubrication system separate from the fuel.

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