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  2. SAE J300 - Wikipedia

    en.wikipedia.org/wiki/SAE_J300

    The SAE has a separate viscosity rating system for gear, axle, and manual transmission oils, SAE J306, which should not be confused with engine oil viscosity. The higher numbers of a gear oil (e.g., 75W-140) does not mean that it has higher viscosity than an engine oil 20W-50.

  3. Hydraulic fluid - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_fluid

    It is a hydraulic oil that can also be used in the transmissions and wet brakes of machines like tractors. STOU: Is an abbreviation for "Super Tractor Oil Universal". It is a hydraulic oil that can also be used in the motor, the transmissions and wet brakes. So its main difference to the UTTO oil is that it can be used also as an motor oil.

  4. Motor oil - Wikipedia

    en.wikipedia.org/wiki/Motor_oil

    Motor oil, engine oil, or engine lubricant is any one of various substances used for the lubrication of internal combustion engines. They typically consist of base oils enhanced with various additives, particularly antiwear additives , detergents, dispersants , and, for multi-grade oils, viscosity index improvers .

  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. Shell Rotella - Wikipedia

    en.wikipedia.org/wiki/Shell_Rotella

    Tractor fluid (a universal transmission, gear, hydraulic, and wet brake fluid) Gear oil; In the engine oil family, there are four basic oil sub-families: Multigrade conventional oil—in SAE 10W-30 and 15W-40 viscosity ranges; Multigrade synthetic oil—in SAE 5W-40 and 15w-40 viscosity ranges [3] Single grade conventional oil—in SAE 20, 30 ...

  7. Viscosity index - Wikipedia

    en.wikipedia.org/wiki/Viscosity_index

    where U is the oil's kinematic viscosity at 40 °C (104 °F), Y is the oil's kinematic viscosity at 100 °C (212 °F), and L and H are the viscosities at 40 °C for two hypothetical oils of VI 0 and 100 respectively, having the same viscosity at 100 °C as the oil whose VI we are trying to determine.

  8. Lubricant - Wikipedia

    en.wikipedia.org/wiki/Lubricant

    API 1509, Engine Oil Licensing and Certification System, 15th Edition, 2002. Appendix E, API Base Oil Interchangeability Guidelines for Passenger Car Motor Oils and Diesel Engine Oils (revised) Boughton and Horvath, 2003, Environmental Assessment of Used Oil Management Methods, Environmental Science and Technology, V38; I.A. Inman.

  9. Brake fluid - Wikipedia

    en.wikipedia.org/wiki/Brake_fluid

    The origins of modern braking systems date back to an event more than a century ago - in 1917, Scotsman Malcolm Lockheed patented a hydraulic actuated braking system. [2] [3] Initially, vegetable oil was used as a working fluid. But it did not meet the most basic requirements, and in the process of evolution, special brake fluids were created ...

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