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2. API-TC - Wikipedia

   en.wikipedia.org/wiki/API-TC

   API TC is a certification for two-stroke oils, awarded by the American Petroleum Institute. It is given after the product passes through stringent tests that determine the level of detergent performance, dispersion, and anti-oxidation. It is the only remaining, not revoked classification of the API Two-Cycle motor oil specifications (TA, TB, TC ...

3. Motor oil - Wikipedia

   en.wikipedia.org/wiki/Motor_oil

   Engine oil which has been tested and meets the API standards may display the API Service Symbol (also known as the "Donut") with the service categories on containers sold to oil users. [21] The latest API service category is API SP for gasoline automobile and light-truck engines. [22] The SP standard refers to a group of laboratory and engine ...

4. SAE J300 - Wikipedia

   en.wikipedia.org/wiki/SAE_J300

   The oil fails the test at a particular temperature if the oil is too viscous. The grade of the oil is that associated with the coldest temperature at which the oil passes the test. For example, if an oil passes at the specified temperatures for 10W and 5W, but fails at the 0W temperature, the oil is grade 5W. It cannot be labeled 0W or 10W.

5. Shell Rotella - Wikipedia

   en.wikipedia.org/wiki/Shell_Rotella

   The line includes engine oils, gear oils and coolants. The oil carries both the American Petroleum Institute (API) diesel "C" rating as well as the API gasoline engine "S" rating. Ratings differ based on the oil. Rotella oils, like the T3 15W-40, meet both the API CJ-4 and SM specifications, and may be used in both gasoline and diesel engines.

6. American Petroleum Institute - Wikipedia

   en.wikipedia.org/wiki/American_Petroleum_Institute

   API also defines the industry standard for the energy conservation of motor oil. As of 2020 API SP is the latest specification. It supersedes API SN. SP specifies more stringent engine oil performance requirements for spark-ignited internal combustion engines. These include a chain wear test and a test for very low-viscosity engine oils.

7. List of crude oil products - Wikipedia

   en.wikipedia.org/wiki/List_of_crude_oil_products

   The three most quoted oil products are North America's West Texas Intermediate crude (WTI), North Sea Brent Crude, and the UAE Dubai Crude, and their pricing is used as a barometer for the entire petroleum industry, although, in total, there are 46 key oil exporting countries. Brent Crude is typically priced at about $2 over the WTI Spot price ...