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 is not needed under normal conditions and they would result in additional cost.
Therefore, you should not have to add anything to the fuel.
See also:
Synthetic Engine Oils
You may use synthetic engine oils provided the recommended
oil quality requirements are met, and the recommended
maintenance intervals for oil and filter changes
are followed. ...
Rim Size
This is the rim size that is appropriate for the tire size
listed. ...
Cleaning The Center Console Cupholders
Clean with a damp cloth or towel using a mild detergent
with the cupholder in the center console.
NOTE:
The cupholder cannot be removed. ...