Transportation Fuels Gasoline: Primary fuel for spark-ignition engines in vehicles. Diesel: Fuel for compression-ignition engines in trucks and some passenger vehicles. Jet Fuel: Specialized fuel for aircraft engines. Kerosene: Used in aviation and certain heating applications. Fuel Oil: Utilized for heating and power generation. LPG (Liquefied Petroleum Gas): Propane/butane mix for heating, cooking, and fuel. […]