All gasoline sold in the United States is required to contain effective detergent additives. Use of additional detergents or other additives is not needed under normal conditions and would result in additional cost. Therefore you should not have to add anything to the fuel.
See also:
Emissions Inspection And MaintenancePrograms
In some localities, it may be a legal requirement to pass an inspection of your
vehicle’s emissions control system.
Failure to pass could prevent vehicle registration.
For states that require an ...
To Open
Press and hold the power sunroof switch rearward for approximately one second
and the sunroof will stop at the vented position. Press the switch a second time
and hold for approximately one second ...
Sunroof
It is controlled electrically and it will only work when the ignition key is
at MAR.
Sunroof is controlled by a switch. When you release it the roof locks in the
position it is at that moment.
...