In vehicles with similar performance and age, which type of engine generally has lower fuel consumption?

Question

DentroTest · Accepted Answer

The correct answer is the diesel engine. This is because diesel engines have higher thermodynamic efficiency (they utilize energy better) and operate at a higher compression ratio than petrol engines. Consequently, to develop the same power and speed, the diesel engine needs to burn fewer liters of fuel. Although petrol engines have improved significantly, under equal conditions, diesel remains more economical in terms of consumption per kilometer.

In vehicles with similar performance and age, which type of engine generally has lower fuel consumption?

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