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:
Hill Start Assist (HSA)
The HSA system is designed to assist the driver when starting a vehicle from
a stop on a hill. HSA will maintain the level of brake pressure the driver applied
for a short period of time after the ...
Front doors
Opening by hand from the outside
Front doors: turn the key to 2-fig. 107 and pull the handle.
Locking by hand from the outside
Front doors: close the door and turn the key to 1-fig. 107.
Opening b ...
Fixed passenger seat
Adjusting the reclining seat back
Lift lever A-fig. 52.
...