See also:

5.7L Engine
This engine is designed to meet all emissions regulations and provide satisfactory fuel economy and performance when using high-quality unleaded gasoline having an octane range of 87 to 89. ...

ECO (Fuel Saver Mode) — If Equipped
The ECO message will display below the outside temperature in the EVIC display (if the audio system is on the ECO indicator will override the audio information display line if the Display Fuel Sav ...

If Your Engine Overheats
In any of the following situations, you can reduce the potential for overheating your engine by taking the appropriate action. • On the highways — slow down. • In city traffic — while st ...