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:
Snow chains
Use of snow chains should be in compliance with local regulations.
Snow chains should only be applied to the driving wheels (front wheels).
Refer to the following table for information on the wheel ...
Manual Transmission – If Equipped
Apply the parking brake, place the shift lever in NEUTRAL, and press the clutch
pedal before starting the vehicle. This vehicle is equipped with a clutch interlocking
ignition system. It will not ...
Recirculation
Move slider (B) to .
This function is particularly useful when the outside air is heavily polluted
(in a traffic jam, tunnel, etc.). However, it is better not to use it for long periods,
especial ...