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:
Cruise control
Turning the ignition key to MAR, the warning light
(if present) on the instrument panel
shall turn on but it should go off after a few seconds.
The warning light on the dial comes on (on certa ...
Cigar Lighter — If Equipped
WARNING!
When the cigar lighter is in use it becomes very hot.
To avoid serious injury, handle the cigar lighter with care. Always check that
the cigar lighter has turned off. ...