American Petroleum Institute (API) Engine Oil Identification Symbol

This symbol means that the oil has been certified by the American Petroleum Institute (API). The manufacturer only recommends API Certified engine oils.
CAUTION!
Do not use chemical flushes in your engine oil as the chemicals can damage your
engine. Such damage is not covered by the New Vehicle Limited Warranty.
See also:
Selection Of Lubricant
It is important that the proper lubricant is used in the
transmission to assure optimum transmission performance.
Use only the manufacturer’s recommended transmission
fluid. Refer to “Fluids, ...
Engine Oil Viscosity – 5.7L Engine
SAE 5W-20 engine oil is recommended for all operating
temperatures. This engine oil improves low temperature
starting and vehicle fuel economy.
The engine oil filler cap also shows the recommende ...
Adding Coolant
Your vehicle has been built with an improved engine
coolant (antifreeze) that allows extended maintenance
intervals. This engine coolant (antifreeze) can be used up
to 5 Years or 104,000 miles ( ...


