Dizel, or diesel, is a type of fuel derived from crude oil, primarily used in internal combustion engines. It is known for its efficiency and energy density, making it a popular choice for vehicles like trucks, buses, and some cars. Diesel engines typically provide more torque and better fuel economy compared to gasoline engines. The invention of the diesel engine is credited to Rudolf Diesel, a German engineer who developed it in the late 19th century. Diesel engines operate using a different combustion process, igniting fuel through compression rather than a spark, which contributes to their durability and longevity.