The 2014 Scion xB runs on regular unleaded.
The 2014 Scion iQ runs on regular unleaded.
The 2014 Scion xD runs on regular unleaded.
The 2014 Scion FR-S runs on premium unleaded (required).
The 2009 Scion tC runs on regular unleaded.
The 2012 Scion tC runs on regular unleaded.
The 2013 Scion xB runs on regular unleaded.
The 2005 Scion xB runs on regular unleaded.
The 2008 Scion xD runs on regular unleaded.
The 2012 Scion iQ runs on regular unleaded.
The 2010 Scion xD runs on regular unleaded.
The 2009 Scion xB runs on regular unleaded.