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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.
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 .
The SAE has a separate viscosity rating system for gear, axle, and manual transmission oils, SAE J306, which should not be confused with engine oil viscosity. The higher numbers of a gear oil (e.g., 75W-140) does not mean that it has higher viscosity than an engine oil 20W-50.
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 .
Although PTFE has been called "the slickest substance known to man", [15] [16] it would hardly do any good if it remains in the oil filter. Some mass-market engine oil additives, notably the ones containing PTFE/Teflon (e.g. Slick 50) [17] and chlorinated paraffins (e.g. Dura Lube), [18] caused a major backlash by consumers; the U.S. Federal ...
Motorcraft also sells motor oil for automotive use. As of the late 2000s, most of their oil is a synthetic blend or fully synthetic. Several weights are available, from 0W-20 all the way to 15W-40 for diesel engines.