The 2002 Buick Regal has a 4-speed automatic.
The 2012 Buick Regal runs on flex-fuel (FFV).
The 2003 Buick Regal runs on regular unleaded.
The 2004 Buick Regal runs on regular unleaded.
The 2001 Buick Regal runs on regular unleaded.
The 2011 Buick Regal runs on regular unleaded.
The 2013 Buick Regal runs on regular unleaded.
The 2014 Buick Regal runs on premium unleaded (recommended).
dextron II (2)
The 2014 Buick Regal has a 6-speed automatic.
The 2004 Buick Regal has a 4-speed automatic.
The 2001 Buick Regal has a 4-speed automatic.