Tri-Par Oil #21 - BP
499 E Rubicon, Hustisford WI
Ethanol-free octane ratings: 91
GPS coordinates: N 43.34116 W 88.59447 (located from address)
Updated by Mike, August 28, 2016 11:32 CDT
Premium is always ethanol-free, but regular can have ethanol (mid is blend of premium and regular so it could also have ethanol.)
Posted by RumpRanger, June 16, 2011 20:31 CDT
Found this new addition. It is East of Hustisford, on the North side of Hwy 60, just east of county Hwy R. Eastern edge of Dodge county, they say that they actually are in Rubicon.