What is another word for compression ignition engines?
Pronunciation: [kəmpɹˈɛʃən ɪɡnˈɪʃən ˈɛnd͡ʒɪnz] (IPA) 
Compression ignition engines are also referred to as diesel engines or CI engines. These engines are commonly used in large trucks, buses, and heavy machinery because of their high torque output and fuel efficiency. Other synonyms for compression ignition engines include oil engines, compression-ignition oil engines, and compression-ignition internal combustion engines. Diesel engines are named after their inventor, Rudolf Diesel, and are sometimes referred to simply as "Diesels." Compression ignition engines are often compared to spark ignition engines, which are commonly found in small vehicles and use gasoline as fuel. While both types of engines use internal combustion to generate power, they have different fuel delivery and ignition systems.
