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  2. 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 .

  3. API-TC - Wikipedia

    en.wikipedia.org/wiki/API-TC

    It is the only remaining, not revoked classification of the API Two-Cycle motor oil specifications (TA, TB, TC, TD). Being a very old standard itself, most currently produced 2T lubricants meet its specifications, even the lowest quality ones; current high-quality oils exceed them (often labeled "API TC+" although not based on actual measurements).

  4. SAE J300 - Wikipedia

    en.wikipedia.org/wiki/SAE_J300

    A 10W-30 oil must pass the SAE J300 viscosity grade requirements for both 10W and 30, and all limitations placed on the viscosity grades, such as the requirement that a 10W oil must fail the 5W requirements. Viscosity index improvers (VIIs) are special polymer additives added to oil, usually to improve cold weather performance in passenger ...

  5. Shell Rotella - Wikipedia

    en.wikipedia.org/wiki/Shell_Rotella

    Several owners of high performance model cars have adopted its use due to its high heat tolerance and its resistance to shearing. Rotella T6 is a Non Energy Conserving Oil, and does not meet GF-5 Oil specifications. When Rotella T6 was revised for the API specification (for use in spark ignition engines), its zinc levels were effectively reduced.

  6. 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]

  7. 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.

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