Marathon - MARATHON
4252 W Shelby Rd, Shelby MI
231-861-0010
Ethanol-free octane ratings: 91
GPS coordinates: N 45.72031 W 98.20224 (located from address)
Updated by Jonathan Lathbury, July 13, 2016 8:07 CDT
Updated address. This station is located right off US Hwy 31.
Posted by DW, July 13, 2016 7:48 CDT
Pumps are labeled: 91 octane ethanol free. I tested my last purchase April 2016 and found to be ethanol free