With a very big hammer
Wandering fuel gauge on a 2003 regal
The 2012 Buick Regal runs on flex-fuel (FFV).
How do you replace the fuel filter on a 2003 Buick Regal?
The 2003 Buick Regal runs on regular unleaded.
The 2004 Buick Regal runs on regular unleaded.
The 2013 Buick Regal runs on regular unleaded.
The 2011 Buick Regal runs on regular unleaded.
The 2001 Buick Regal runs on regular unleaded.
The 2002 Buick Regal runs on regular unleaded.
The 2014 Buick Regal runs on premium unleaded (recommended).
broken fuel gauage sensor or possibly a broken fuel pump indicator
In the fuel tank.