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:
28. Tachometer
The white area of the scale shows the permissible engine revolutions-per-minute
(RPM x 1000) for each gear range.
Before reaching the red area, ease up on the accelerator to prevent engine damage. ...
General considerations
Vehicle maintenance
The overall state of the vehicle is an important factor which has a marked influence
over fuel consumption and driving comfort and on the life span of your vehicle.
For this r ...
11. Seat Belt Reminder Light
When the ignition switch is first turned to ON/ RUN, this light will turn on
if the driver’s seat belt is unbuckled, a chime will sound. When driving, if the
driver’s seat belt remains unbuckled ...