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:
Checking the levels
1. Engine oil
2. Battery
3. Brake fluid
4. Windscreen washer fluid
5. Engine coolant
6. Power steering fluid.
Do not smoke while working in the engine compartment: the presence of flammable
...
Extending the boot
Single rear seat
Proceed as follows:
❒ fasten the seat buckles to the tabs on the seat back (as shown by arrows);
❒ check that the webbing (A) of each of the two side seat belts is ...
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 ...