Quick Facts
- Also called:
- furnace oil
- Related Topics:
- pour point
- fuel
- chemical product
- On the Web:
- National Center for Biotechnology Information - Toxicological Profile for Fuel Oils (Nov. 03, 2026)
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fuel oil
petroleum product
Also known as: furnace oil
fuel oil, fuel consisting mainly of residues from crude-oil distillation. It is used primarily for steam boilers in power plants, aboard ships, and in industrial plants. Commercial fuel oils usually are blended with other petroleum fractions to produce the desired viscosity and flash point. Flash point is usually higher than that of kerosene. The term fuel oil ordinarily does not include such fuels as kerosene.
This article was most recently revised and updated by Amy Tikkanen.

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