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:
27. Fuel Gauge / Fuel Door Reminder
The fuel door reminder indicates that the fuel filler door is located on the
right side of the vehicle. When the ignition switch is in the ON/RUN position, the
digital scale will show the level of ...
AutoStick — If Equipped
AutoStick is a driver-interactive feature providing manual shift control, giving
you more control of the vehicle. AutoStick allows you to maximize engine braking,
eliminate undesirable upshifts an ...
Climatic comfort
Knob (D) directs the air inside the passenger compartment according to five levels:
air flow from central vents and
side outlets;
to warm the feet and keep the face
cool (“bilevel” function)
...