Ford F-150 2018 Owner's Manual page 432

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Capacities and Specifications

The American Petroleum Institute (API)

service symbol is used to identify the

proper engine oil for your engine. The API

service symbol will be displayed on the oil

container you purchase. The API symbol

displays the oil performance category in

the top half of symbol and the viscosity

grade in the center of the symbol.

F-150 (TFC) Canada/United States of America, enUSA, Edition date: 201709, Second Printing

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