Schwenn's Service - UNBRANDED
5601 Monona Dr, Monona WI
608-222-4254
Ethanol-free octane ratings: 87 91
GPS coordinates: N 43.05915 W 89.32589 (located from address)
Updated by One2Go, December 04, 2016 19:52 CST
Storage tanks used by station have never had ethanol gas. Only non-ethanol gas has been delivered since storage tanks changed 20 years ago.
Updated by dukester, May 23, 2014 18:23 CDT
octane
Updated by Otto Anderson, June 14, 2011 19:59 CDT
Only has 91 Octane and 87 Octane no mid grad. I know as I buy my gas there.
Posted by Paul Rogovich, September 16, 2010 18:47 CDT