system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: why do industrial engines (e.g. buses, semi, tractors, generators) use diesel instead of gasoline?
gpt
Diesels generate more torque per unit of displacement than gasoline engines, and when you're moving something big torque is what you want. Diesels are also simpler, more robust, and general less maintenance intensive. All of which makes them less expensive to operate.