system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why don't more cars run on diesel instead of gasoline?

In my understanding, diesel usually gets 20-30 mpg more than gas does and that would produce less harmful gases and be worth the extra money spent on it.
gpt
A lot of people don't like the sound & vibration of a diesel engine, they are "rougher" than the regular engines.  If you're on the fence, take one for a test-drive you'll be a convert like me, the torque of a modern diesel is something to experience.