Only Ford products have a fuel shut-off switch. GM never used them. 1992 Buick Regal Owner
16.5 gallons
Look under the vehicle follow the fuel line from the tank
How do you replace the fuel filter on a 2003 Buick Regal?
The 2012 Buick Regal runs on flex-fuel (FFV).
along the frame towards the back near the fuel tank divers side
Inside the fuel tank, below the rear seat on the passenger side of the vehicle.
The 2002 Buick Regal runs on regular unleaded.
The 2003 Buick Regal runs on regular unleaded.
The 2011 Buick Regal runs on regular unleaded.
The 2004 Buick Regal runs on regular unleaded.
The 2001 Buick Regal runs on regular unleaded.