I live at 5200 feet and 91 octane works fine for me. I have never seen 93 octane available anywhere in AZ.
AZ
__________________
AZ Roadster
'09 Base|Chicane Yellow|TSW Nurburgrings|Stillen CBE|Eclipse AVN726E In Dash DVD/NAV|Clear Bra|H&R Spacers 15/20|Hankook Ventus V-12's 275/35 & 305/30
|