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2. Heavy crude oil - Wikipedia

   en.wikipedia.org/wiki/Heavy_crude_oil

   A definition from the Chevron Phillips Chemical company is as follows: The "heaviness" of heavy oil is primarily the result of a relatively high proportion of a mixed bag of complex, high molecular weight, non-paraffinic compounds and a low proportion of volatile, low molecular weight compounds.

3. API gravity - Wikipedia

   en.wikipedia.org/wiki/API_gravity

   Crude oil is classified as light, medium, or heavy according to its measured API gravity. Light crude oil has an API gravity higher than 31.1° (i.e., less than 870 kg/m 3) Medium oil has an API gravity between 22.3 and 31.1° (i.e., 870 to 920 kg/m 3) Heavy crude oil has an API gravity below 22.3° (i.e., 920 to 1000 kg/m 3)

4. Motor oil - Wikipedia

   en.wikipedia.org/wiki/Motor_oil

   Motor oil is used for the lubrication, cooling, and cleaning of internal combustion engines. Motor oil may be composed of only a lubricant base stock in the case of mostly obsolete non-detergent oil, or a lubricant base stock plus additives to improve the oil's detergency, extreme pressure performance, and ability to inhibit corrosion of engine ...

5. Barrel (unit) - Wikipedia

   en.wikipedia.org/wiki/Barrel_(unit)

   According to the American Petroleum Institute (API), a standard barrel of oil is the amount of oil that would occupy a volume of exactly 1 barrel (158.99 L) at reference temperature and pressure conditions of 60 °F (15.6 °C) and 14.696 psi (1,013.25 hPa) (or 1 atm). This standard barrel of oil will occupy a different volume at different ...

6. Oil - Wikipedia

   en.wikipedia.org/wiki/Oil

   An oil is any nonpolar chemical substance that is composed primarily of hydrocarbons and is hydrophobic (does not mix with water) and lipophilic (mixes with other oils).

7. Barrel of oil equivalent - Wikipedia

   en.wikipedia.org/wiki/Barrel_of_oil_equivalent

   Metric regions commonly use the tonne of oil equivalent (toe), or more often million toe (Mtoe). Since this is a measurement of mass, any conversion to barrels of oil equivalent depends on the density of the oil in question, as well as the energy content. Typically 1 tonne of oil has a volume of 1.08 to 1.19 cubic metres (6.8 to 7.5 bbl).

8. Fuel oil - Wikipedia

   en.wikipedia.org/wiki/Fuel_oil

   Fuel oils include heavy fuel oil (bunker fuel), marine fuel oil (MFO), furnace oil (FO), gas oil (gasoil), heating oils (such as home heating oil), diesel fuel, and others. The term fuel oil generally includes any liquid fuel that is burned in a furnace or boiler to generate heat ( heating oils ), or used in an engine to generate power (as ...

9. Heavy fuel oil - Wikipedia

   en.wikipedia.org/wiki/Heavy_fuel_oil

   Heavy fuel oil (HFO) is a category of fuel oils of a tar-like consistency. Also known as bunker fuel , or residual fuel oil , HFO is the result or remnant from the distillation and cracking process of petroleum .