Sioux Falls, SD, 2016-Sep-28 — /EPR Retail News/ —  Kum & Go will offer E-15 fuel for $1.15 per gallon at four Sioux Falls-area Kum & Go locations from 6 a.m. to 6 p.m. on Wednesday, September 28, including the following locations: Store 620 – 412 N Sycamore Ave Store 625 – 7100 W…