East Hills - COSTCO
75 E Hills Blvd Se, Calgary AB
Ethanol-free octane ratings: 91
GPS coordinates: N 51.04302 W 113.91775 (entered by Reez)
Posted by Reez, August 29, 2019 8:27 CDT
I spoke with the attendant on August 28th, 2019. He assured me that 91 octane is and will always be ethanol-free. He acknowledged that Costco has a main supplier and backup suppliers. Worth noting is that Costco gas is "Top-Teir"