What is/are the Best Gasoline Brand(s) out there in the Phoenix Area that you would use in your Ferrari? Up here,I only use Amoco Ultimate 93 Octane. If I'm not near an Amoco when I need Gas,my second choice is Shell 93 Octane. I can't recall all of the Gas Brands that I've used when I am out there.(ARCO is one ) I haven't had my Ferrari out there yet on a visit to all of the Family. But,just might this Year... Thanks!