This is a discussion on Idiotic question (fuel door release) within the 2010 Mustang forums, part of the Mustang Forums category; Nevermind, I figured out how to open the gas door. Is there a discernible difference between using 87 and 93 ...
I believe premium (91) is recommended - but it will run on 87.
Depends on the Car if its a GT then Premuim is recommended but if its a V6 then 87 is the recommeded fuel ! Looking at the Picts in the Profile Looks like a GT!!
Oh he did say it was a GT sorry missed that Part.