The fuel door on a 2013 Ford Fusion can be opened by using the fuel door lever next to the driver's side seat. Pull the lever up and the fuel door will open.
The 2013 Ford Fusion runs on regular unleaded.
The 2013 Ford Fusion-Hybrid runs on regular unleaded.
I was looking at the 2013 Ford Fusion Hybrid Owner Guide : All it shows is " fuel requirement , minimum 87 octane "
According to the ( 2013 ) Ford Fusion Owner Guide : Front wheel drive ( 16.5 U.S. gallons ) All wheel drive ( 17.5 )
A 2013 Ford Focus has Fords Easy Fuel system , so there is no gas cap ( but there is a cover door )
The 2012 Ford Fusion runs on regular unleaded.
The 2007 Ford Fusion runs on regular unleaded.
The 2010 Ford Fusion runs on regular unleaded.
The 2009 Ford Fusion runs on regular unleaded.
The 2011 Ford Fusion runs on regular unleaded.
The 2008 Ford Fusion runs on regular unleaded.
The 2006 Ford Fusion runs on regular unleaded.