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How long will it take to repair the engine?

Is the engine's condition getting worse?

The engine of this car uses two kinds of fuel.

You have to start the petrol engine before driving the car.

These three kinds of engines reduce pollution and increase efficiency.

If the customer modifies the engine, it is rather dangerous.

When compared to a combustion engine, an electric car is driven by a motor.

The belt and components of a combustion engine are very complex.

Furthermore, old style engines will emit exhaust fumes or pollution.

When compared to that style of engine, the motor does not emit exhaust fumes at all.

When compared to a combustion engine, the parts of a motor rub against each other less.

A combustion engine emits a lot of pollution.