| − | '''Diesel''' is a type of [[fuel]] used in diesel [[Engine|engines]]. It is heavier than regular unleaded [[gasoline]] and has a higher ignition point. Diesel is primarily derived from [[petroleum]] but is increasingly made from biological sources (biodiesel). Diesel engines are generally more fuel efficient and powerful than their unleaded gasoline counterparts, hence their use in [[military]], [[construction]], and heavy transportation equipment. | + | '''Diesel''' is a type of [[fuel]] used in diesel [[engine]]s. It is heavier than regular unleaded [[gasoline]] and has a higher ignition point. Diesel is primarily derived from [[petroleum]] but is increasingly made from biological sources (biodiesel). Diesel engines are generally more fuel efficient and powerful than their unleaded gasoline counterparts, hence their use in [[military]], [[construction]], and heavy transportation equipment. |