I was looking at the 2012 Ford Focus Owner Guide ( for North America )
It shows " if your vehicle is flex fuel capable , it will have a YELLOW
BEZEL placed over the fuel fill inlet "
The 2012 Ford Focus runs on flex-fuel (unleaded/E85).
chain
The 2007 Ford Focus runs on regular unleaded.
The 2008 Ford Focus runs on regular unleaded.
The 2003 Ford Focus runs on regular unleaded.
The 2009 Ford Focus runs on regular unleaded.
The 2004 Ford Focus runs on regular unleaded.
The 2001 Ford Focus runs on regular unleaded.
The 2005 Ford Focus runs on regular unleaded.
The 2006 Ford Focus runs on regular unleaded.
The 2011 Ford Focus runs on regular unleaded.
The 2002 Ford Focus runs on regular unleaded.