Diesel did use peanut oil, though only after someone else showed that it was possible: https://en.wikipedia.org/wiki/Rudolf_Diesel#Use_of_vegetable_oils_as_die

Diesel did use peanut oil, though only after someone else showed that it was possible: https://en.wikipedia.org/wiki/Rudolf_Diesel#Use_of_vegetable_oils_as_diesel_engine_fuel https://en.wikipedia.org/wiki/Rudolf_Diesel#Use_of_vegetable...