Quiz: What are the main differences between gasoline and diesel en March 9, 2025 by Alex Turner What are the main differences between gasoline and diesel engines in terms of operation? Discover more about Vehicle Engine and Automobile at our home page. A) Gasoline engines use spark plugs for ignition, while diesel engines rely on compression to ignite the fuel. B) Gasoline engines are typically more fuel-efficient than diesel engines under all conditions. C) Diesel engines operate at lower temperatures compared to gasoline engines. D) Gasoline engines produce more torque than diesel engines at low RPMs. Submit Answer