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:
TIREFIT Usage Precautions
• Replace the TIREFIT Sealant Bottle (1) and Sealant Hose (6) prior to the expiration
date (printed on the bottle label) to assure optimum operation of the system.
Refer to “Sealing a Tire with TIR ...
Electronic Speed Control
When engaged, the Electronic Speed Control takes over accelerator operations
at speeds greater than 25 mph (40 km/h).
The Electronic Speed Control buttons are located on the right side of the steer ...
Seat Bel
Inspect the belt system periodically, checking for cuts, frays, and loose parts.
Damaged parts must be replaced immediately. Do not disassemble or modify the system.
Front seat belt assemblies must ...