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2. 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.

3. Motor oil - Wikipedia

   en.wikipedia.org/wiki/Motor_oil

   While engine oils are formulated to meet a specific API service category, they in fact conform closely enough to both the gasoline and diesel categories. Thus diesel rated engine oils usually carry the relevant gasoline categories, e.g. an API CJ-4 oil could show either API SL or API SM on the container.

4. Zinc dithiophosphate - Wikipedia

   en.wikipedia.org/wiki/Zinc_dithiophosphate

   Grades 40 and higher have no regulation regarding the concentration of ZDDP, except for diesel oils meeting the API CJ-4 specification which have had the level of zddp reduced slightly, although most diesel Heavy-Duty Engine oils still have a higher concentration of this additive. [3]

5. Oil additive - Wikipedia

   en.wikipedia.org/wiki/Oil_additive

   The choice of additives is determined by the use, e.g. the oil for a diesel engine with direct injection in a pickup truck (API Service CJ-4) has different additives than the oil used in a small gasoline-powered outboard motor on a boat (2-cycle engine oil).

6. CJ4 - Wikipedia

   en.wikipedia.org/wiki/CJ4

   CJ-4, a category of motor oil Topics referred to by the same term This disambiguation page lists articles associated with the same title formed as a letter–number combination.

7. List of crude oil products - Wikipedia

   en.wikipedia.org/wiki/List_of_crude_oil_products

   The chemical profiles, or crude oil assays, specify important properties such as the oil's API gravity. The delivery locations are usually sea ports close to the oil fields from which the crude was obtained (and new fields are constantly being explored), and the pricing is usually quoted based on FOB ( free on board , without consideration of ...