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:
CO2 emissions
The CO2, emission levels at the exhaust given in the following table refer to
combined consumption.
CO2 emissions according to Directive 1999/100/EC (g/km)
Petrol engines
Diesel engines
&nbs ...
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. ...
Refuelling
To guarantee full tank filling, carry out two refueling operations after the
first click of the fuel delivery gun.
Avoid further topping up operations that could cause damages to the fuel system.
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