Peanut oil is an organic oil derived from peanuts, noted to have the slight aroma and taste of its parent legume. It is often used in Southeast Asian cuisine much as olive oil is used in the Mediterranean. Peanut oil is appreciated for its high smoke point relative to many other cooking oils. Its major component fatty acids are palmitic acid (8-14%), oleic acid (36-67%), and linoleic acid (14-34%). The oil also contains some 6-8% (total) of arachidic acid, arachidonic acid, behenic acid, lignoceric acid and other fatty acids.

Peanut oil was used as the original source of fuel for the diesel engine