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  2. Motor oil - Wikipedia

    en.wikipedia.org/wiki/Motor_oil

    The International Lubricant Standardization and Approval Committee (ILSAC) also has standards for motor oil. Introduced in 2004, GF-4 [27] applies to SAE 0W-20, 5W-20, 0W-30, 5W-30, and 10W-30 viscosity grade oils. In general, ILSAC works with API in creating the newest gasoline oil specification, with ILSAC adding an extra requirement of fuel ...

  3. Oil additive - Wikipedia

    en.wikipedia.org/wiki/Oil_additive

    Oil additives are chemical compounds that improve the lubricant performance of base oil (or oil "base stock"). The manufacturer of many oils can use the same base stock for each formulation and can choose different additives for each use. Additives comprise up to 5% by weight of some oils. [1]

  4. Multiphasic liquid - Wikipedia

    en.wikipedia.org/wiki/Multiphasic_liquid

    Biphasic mixtures consisting of two immiscible phases are very common and usually consist of an organic solvent and an aqueous phase ("oil and water"). Multiphasic liquids can be used for selective liquid–liquid extractions or for decorative purposes, e.g. in cosmetics.

  5. Viscosity index - Wikipedia

    en.wikipedia.org/wiki/Viscosity_index

    Thus the issue of multigrade oils came into being, where with variable temperatures of, say, −10 °C during the cold nights and 20 °C during the days, a 5 weight oil would be good as the oil would be pumpable in a cold engine and as the engine came up to running temperature, and the day warmed up, the characteristics of a 30 weight oil would ...

  6. Two-stroke oil - Wikipedia

    en.wikipedia.org/wiki/Two-stroke_oil

    The oil is dyed blue to make it easier to recognize in the gasoline. It appears black in this bottle because it is not diluted. Two-stroke oil (also referred to as two-cycle oil, 2-cycle oil, 2T oil, or 2-stroke oil) is a special type of motor oil intended for use in crankcase compression two-stroke engines, typical of small gasoline-powered ...

  7. Base oil - Wikipedia

    en.wikipedia.org/wiki/Base_oil

    The most common one is a type of paraffinic crude oil, although there are also naphthenic crude oils that create products with better solubility and very good properties at low temperatures. By using hydrogenation technology, in which sulfur and aromatics are removed using hydrogen under high pressure, extremely pure base oils can be obtained ...

  8. Benchmark (crude oil) - Wikipedia

    en.wikipedia.org/wiki/Benchmark_(crude_oil)

    Dubai Crude, also known as Fateh, is a heavy sour crude oil extracted from Dubai.It is produced in the Emirate of Dubai, part of the United Arab Emirates. [5] Dubai's only refinery, at Jebel Ali, takes condensates as feedstocks, and therefore all of Dubai's crude production is exported.

  9. Mixing ratio - Wikipedia

    en.wikipedia.org/wiki/Mixing_Ratio

    In chemistry and physics, the dimensionless mixing ratio is the abundance of one component of a mixture relative to that of all other components. The term can refer either to mole ratio (see concentration ) or mass ratio (see stoichiometry ).

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