The tachometer displays the engine speed in revolutions per minute (rpm).
Notice: If the engine is operated with the tachometer in the shaded warning area, the vehicle could be damaged, and the damages would not be covered by the vehicle warranty.
Do not operate the engine with the tachometer in the shaded warning area.
Speedometer and Odometer
Safety Belt RemindersChevrolet Cobalt Service & Repair Manual. Engine Oil Filter R & R
1.
Raise and support the vehicle.
2.
Place a drain pan under the oil drain
plug.
3.
Remove the oil pan drain plug.
4.
Allow the oil to drain completely.
5. ...