From factory R-12 Should be converted to R-134
R134a
The 2013 Buick Regal runs on regular unleaded.
The 2001 Buick Regal runs on regular unleaded.
The 2011 Buick Regal runs on regular unleaded.
The 2002 Buick Regal runs on regular unleaded.
The 2003 Buick Regal runs on regular unleaded.
The 2004 Buick Regal runs on regular unleaded.
yes 97 to 05 century and regal are 100% interchangable
The 2012 Buick Regal runs on flex-fuel (FFV).
The 2014 Buick Regal runs on premium unleaded (recommended).
Only a professional can do this...there are strict laws about the use of refrigerant
Buick does not use inertia/ reset switches.