Grand Prix V6-3.8L SC VIN 1 (1997)
Fillpipe Restrictor: Description and Operation
Fuel Tank Filler Pipe
To help prevent refueling with leaded fuel, the fuel filler neck (2) 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.