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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. SAE J300 - Wikipedia

    en.wikipedia.org/wiki/SAE_J300

    Grades may appear alone - for example, a lawnmower may require SAE 30. This single grade specification means that the oil must meet the SAE 30 requirements. But SAE also allows designating an oil with two viscosity grades, referred to as a multi-grade oil. For example, 10W-30 designates a common multi-grade oil. A 10W-30 oil must pass the SAE ...

  4. Viscosity index - Wikipedia

    en.wikipedia.org/wiki/Viscosity_index

    Thus the 5W-30 oils were introduced, rather than the fixed and temperature limiting grades – where the thin oils became too thin when hot and the thicker oils became too thick when cold. The effects of temperature on a single-viscosity oil can be demonstrated by pouring a small amount of vegetable oil into a pot or pan and then either cooling ...

  5. Home equity: What is it and how can you use it? - AOL

    www.aol.com/finance/home-equity-121018740.html

    Home equity is the difference between your home's value and the amount you still owe on your mortgage. It represents the paid-off portion of your home. ... putting 3 percent down with a 30-year ...

  6. 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.

  7. List of thermal conductivities - Wikipedia

    en.wikipedia.org/wiki/List_of_thermal_conductivities

    30 varnished silicon steel foils each of thickness 0.014 inches (0.356 mm): density 7.36 g cm −3; measured near a temperature of 358.2 K under pressure in the range 0 — 132 psi: 0 psi 0.512 w m −1 K −1