See also:

After Starting
The idle speed is controlled automatically and it will decrease as the engine warms up. ...

Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of coolant, and to ensure that engine coolant (antifreeze) will return to the radiator from the coolant recovery bottle. The cap should be inspec ...

Engine Break-In Recommendations
A long break-in period is not required for the engine and drivetrain (transmission and axle) in your vehicle. Drive moderately during the first 300 miles (500 km). After the initial 60 miles (100 ...