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:
Replacement Parts
Use of genuine parts for normal/scheduled maintenance and repairs is highly recommended
to ensure the designed performance. Damage or failures caused by the use of non-genuine
parts for maintenanc ...
Overview
The new 2012 Fiat Punto builds on the Italian company's heritage of producing
mould-breaking, class leading small cars. Aimed at the most competitive and
dynamic sector of the car market, the 2012 ...
Side doors
Check that it is safe to open a door before doing so.
Make sure that the left-hand sliding side door is completely closed before
refueling (see “At the filling station” in this chapter). You cou ...