What’s worse – putting petrol in a diesel engine or diesel in a petrol engine? © iStock

What’s worse – putting petrol in a diesel engine or diesel in a petrol engine?

How to destroy your car 101.

Asked by: Alastair Bloomfield, Ramsey

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If you put diesel in a petrol engine, it’d cause knocking, which would eventually cause serious damage.

As for diesel engines, they use the fuel itself as a lubricant. Using petrol would eventually cause wear on the engine and corrode seals.

Diesel engines are stronger than petrol ones, so on balance it’s probably worse to put diesel in a petrol engine.

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