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:
Sidelights and low beams
The warning light on the dial turns on when sidelights, parking lights or low
beams are turned on. ...
Glove compartment
Operate handle (A) as shown by the arrow to open the compartment. ...
Programming Additional Transmitters
Refer to Sentry Key “Customer Key Programming.” If you do not have a programmed
RKE transmitter, contact your authorized dealer for details. ...