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  2. Motor oil - Wikipedia

    en.wikipedia.org/wiki/Motor_oil

    Often, these motors are not exposed to as wide of service temperature ranges as in vehicles, so these oils may be single viscosity oils. [ citation needed ] In small two-stroke engines, the oil may be pre-mixed with the gasoline or fuel, often in a rich gasoline: oil ratio of 25:1, 40:1 or 50:1, and burned in use along with the gasoline.

  3. Synthetic oil - Wikipedia

    en.wikipedia.org/wiki/Synthetic_oil

    The advantages of using synthetic motor oils include better low-and high-temperature viscosity performance at service temperature extremes, [24] better (higher) Viscosity Index (VI), [25] and chemical and shear stability. [26] This also helps in decreasing the loss due to evaporation.

  4. Viscosity index - Wikipedia

    en.wikipedia.org/wiki/Viscosity_index

    Historically, there were two different oil types recommended for usage in different weather conditions. As an example, with winter oils and cold starting the engines, and with temperature ranges from, say, −30 °C to 0 °C, a 5 weight oil would be pumpable at the very low temperatures and the generally cooler engine operating temperatures.

  5. Shell Rotella - Wikipedia

    en.wikipedia.org/wiki/Shell_Rotella

    Both Rotella T4 15W-40 conventional and, Rotella T6 5W-40 and 15w-40 Synthetic both list the JASO MA/MA 2 standard; this information can be found on the bottle adjacent to the SAE/API rating stamp. JASO is an acronym that stands for Japanese Automotive Standards Organization. Note that the 10W-30 conventional oil does not list JASO-MA.

  6. SAE J300 - Wikipedia

    en.wikipedia.org/wiki/SAE_J300

    The longer it takes, the higher the viscosity and thus the higher the SAE code. Larger numbers are thicker. J300 specifies a viscosity range for each non-winter grade, with higher grade numbers corresponding to higher viscosities. In addition, a minimum viscosity measured at a high temperature and high-shear rate (HTHS, ASTM D4683) is also ...

  7. NLGI consistency number - Wikipedia

    en.wikipedia.org/wiki/NLGI_consistency_number

    Common greases are in the range 1 through 3. Those with a NLGI No. of 000 to 1 are used in low viscosity applications. Examples include enclosed gear drives operating at low speeds and open gearing. Grades 0, 1 and 2 are used in highly loaded gearing. Grades 1 through 4 are often used in rolling contact bearings. Greases with a higher number ...

  8. Template:Smoke point of cooking oils - Wikipedia

    en.wikipedia.org/wiki/Template:Smoke_point_of...

    Fat Quality Smoke point [caution 1]; Almond oil: 221 °C: 430 °F [1]: Avocado oil: Refined: 271 °C: 520 °F [2] [3]: Avocado oil: Unrefined: 250 °C: 482 °F [4]: Beef tallow: 250 °C: 480 °F

  9. List of thermal conductivities - Wikipedia

    en.wikipedia.org/wiki/List_of_thermal_conductivities

    30 varnished silicon steel foils each of thickness 0.0172 inches (0.4368 mm); density 7.51 g cm −3; measured near a temperature of 358.2 K under pressure in the range 0 — 128 psi: 0 psi 0.433 w m −1 K −1 20 psi 0.807 40 psi 0.965 60 psi 1.04 80 psi 1.10 100 psi 1.18 120 psi 1.24 128 psi 1.26 120 psi 1.26 100 psi 1.22 80 psi 1.18 60 psi ...

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