Civic Hatchback L4-1.6L SOHC (16 Valve) (1996)
Fillpipe Restrictor: Description and Operation
Fillpipe Restrictor
The fillpipe restrictor is used to prevent leaded fuel from being added to the fuel tank. The gasoline pump for unleaded fuel has a smaller nozzle.
The fillpipe restrictor will only allow the unleaded type nozzle to be inserted into the fuel tank.