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:
Manually deactivating passenger’s front air bag (where required)
Should it be absolutely necessary to carry a child on the front seat, the passenger’s
air bag on the car can be deactivated.
Deactivation/reactivation takes place with ignition key at STOP and op ...
If the battery is flat
First of all, read the “Vehicle maintenance” section for the steps to be taken
to avoid the battery running down and to ensure it has a long life.
IF THE BATTERY IS FLAT
Charging should be slow at ...
Side outlets and vents
(A) - Adjustable outlet: press in the direction of the arrow as required.
(B) - Fixed vent for side windows. ...