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  2. 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 ...

  3. Viscosity index - Wikipedia

    en.wikipedia.org/wiki/Viscosity_index

    The best oils with the highest VI will remain stable and not vary much in viscosity over the temperature range. This provides consistent engine performance within the normal working conditions. Historically, there were two different oil types recommended for usage in different weather conditions.

  4. STP (motor oil company) - Wikipedia

    en.wikipedia.org/wiki/STP_(motor_oil_company)

    STP is an American brand of automotive aftermarket products, especially lubricants such as motor oil and motor oil additives. The name began as an abbreviation of Scientifically Treated Petroleum. The brand has been owned by Energizer Holdings since November 2018. [1]

  5. Synthetic oil - Wikipedia

    en.wikipedia.org/wiki/Synthetic_oil

    A sample of synthetic motor oil. Synthetic oil is a lubricant consisting of chemical compounds that are artificially modified or synthesised. Synthetic oil is used as a substitute for petroleum-refined oils when operating in extreme temperature, in metal stamping to provide environmental and other benefits, and to lubricate pendulum clocks.

  6. Mobil 1 - Wikipedia

    en.wikipedia.org/wiki/Mobil_1

    Mobil 1 is a brand of synthetic motor oil and other automotive lubrication products. Originally developed by the Mobil oil company, it is now globally marketed and sold by ExxonMobil. Mobil 1 engine oil was introduced in 1973. [1] The brand range now includes a variety of engine oils, oil filters, chassis grease, transmission fluids, and gear ...

  7. Peak (automotive products) - Wikipedia

    en.wikipedia.org/wiki/PEAK_(automotive_products)

    Old World Industries (OWI) is an American automotive and chemical company best known for their PEAK brand of motor oil, antifreeze and other automotive products. The company markets itself as an "independent, family-owned business". It sells products in over 60 countries. [2] [3] [4] [5]