diesel oil

American

[dee-zuhl oil] / ˈdi zəl ˌɔɪl /

noun

diesel fuel.

diesel oil British

noun

Also called (Brit): derv. a fuel obtained from petroleum distillation that is used in diesel engines. It has a relatively low ignition temperature (540°C) and is ignited by the heat of compression See also cetane number

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

diesel oil Scientific

A lightweight mixture of liquid hydrocarbons that are derived from petroleum. The hydrocarbons in diesel oil contain between 13 and 25 carbon atoms. Diesel oil is used as a fuel for diesel engines.

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diesel oil

Gasoil is a crude-oil derivative, commonly known as diesel oil, used for agricultural machinery, ships and railways, making it a crucial industrial fuel.

From MarketWatch ● Mar. 2, 2026

A spike in diesel oil prices could make goods and materials more expensive to deliver — risking higher inflation.

From The Wall Street Journal ● Jan. 4, 2026

The steam-powered car became possible once gasoline and diesel oil replaced wood and coal for the powering of engines.

From Salon ● Sep. 19, 2022

It sails on diesel oil, the same fuel that powers most ships on the nation’s waterways.

From Washington Post ● Jun. 6, 2022

He breathed the air outside the doors and it smelled like trains, diesel oil, and creosote ties under the steel track.

From "Ceremony:" by Leslie Marmon Silko

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023