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:
Coin tray
A coin tray may be found on the dashboard on the central tunnel according to
the versions. ...
Flashing the headlights
Pull the lever towards the steering wheel (unstable position) regardless of the
position of the knurled ring.
Instrument panel warning light 1will turn on. ...
Air cleaner
REPLACEMENT
Petrol versions
Loosen the screws on the side and on the air cleaner cover, remove the cover
A-fig. 17 and remove the filtering element to be replaced.
1.9 Multijet versions
Loosen ...