Conoco - SINCLAIR
5600 3rd Ave S, Great Falls MT
406-454-3005
Ethanol-free octane ratings: 91
GPS coordinates: N 47.50109 W 111.21581 (entered by greg)
Updated by Andrea, November 18, 2017 18:46 CST
Another dependable site. Not a separate hose so buyer beware
Posted by greg, August 23, 2016 9:42 CDT
Not well advertised, just found it by accident