Materials Added To Fuel
All gasoline sold in the United States is required to contain effective detergent additives. Use of additional detergents or other additives are not needed under normal conditions and would result in additional cost.
Therefore you should not have to add anything to the fuel.
See also:
Intermittent Wiper System
Use one of the four intermittent wiper settings when
weather conditions make a single wiping cycle, with a
variable delay between cycles, desirable. At driving
speeds above 10 mph (16 km/h), the ...
Sunroof Maintenance
Use only a non-abrasive cleaner and a soft cloth to clean
the glass panel. ...
Engine Coolant Level
The coolant bottle provides a quick visual method for determining that the coolant
level is adequate. With the engine idling, and warm to normal operating temperature,
the level of the engine cool ...