The filter is in the fuel pump assembly under the rear seat, however, it is not replaceable or user serviceable. The maintenance schedule's have not been updated to reflect this.
The 2009 Subaru Forester runs on regular unleaded.
The fuel filter is part of the fuel pump. It is servicable, but you have to remove the fuel pump assembly (accessible from under the rear seat).
The 2003 Subaru Forester runs on regular unleaded.
The 2012 Subaru Forester runs on regular unleaded.
The 2010 Subaru Forester runs on regular unleaded.
The 2008 Subaru Forester runs on regular unleaded.
The 2001 Subaru Forester runs on regular unleaded.
The 2011 Subaru Forester runs on regular unleaded.
The 2002 Subaru Forester runs on regular unleaded.
The 2006 Subaru Forester runs on regular unleaded.
The 2013 Subaru Forester runs on regular unleaded.
The 2004 Subaru Forester runs on regular unleaded.