Quiz: What are the key differences between a diesel engine and a g January 13, 2025 by Alex Turner What are the key differences between a diesel engine and a gasoline engine? Discover more about Vehicle Engine and Automobile at our home page. A) Diesel engines use compression ignition, while gasoline engines use spark ignition. B) Gasoline engines are more fuel-efficient than diesel engines. C) Diesel engines require unleaded fuel, while gasoline engines use diesel fuel. D) Gasoline engines produce more torque than diesel engines. Submit Answer