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:
Supplemental Side Air Bag Inflatable Curtain(SABIC)
Supplemental Side Air Bag Inflatable Curtains (SABIC) may offer side-impact protection
to front and rear seat outboard occupants in addition to that provided by the body
structure. Each air bag fe ...
Manual climate control system (where provided)
The climate control system is adjusted manually.
CONTROLS fig. 78
A - Knob for operating the fan and switching the climate control system on and
off.
The climate control system can only be switch ...
Controls
(A): Air temperature knob (mixing hot and cold air);
(B): Air recirculation on/off button;
(C): Fan knob and climate control system on/off;
(D): Air distribution knob. ...