
Diesel
Diesel is a type of fuel derived from crude oil, used primarily in diesel engines found in cars, trucks, and some machinery. Unlike gasoline engines, diesel engines ignite fuel through compression rather than spark plugs. This process makes diesel engines more efficient and durable, offering better fuel economy and more torque for heavy loads. Diesel fuel is denser and contains more energy per volume than gasoline, contributing to these advantages. While often associated with commercial vehicles, modern diesel engines are also popular in passenger cars for their efficiency and longevity.