Cavalier L4-2.2L VIN 4 (1998)
Fillpipe Restrictor: Description and Operation
Fuel Filler Neck And Cap
To help prevent refueling with leaded fuel, the fuel filler neck (1) has a built in restrictor and deflector. The opening in the restrictor will accept only the
smaller unleaded gasoline fuel nozzle which must be fully inserted to bypass the deflector.