A spokesman for fuel company Magellan Midstream Partners says an operation malfunction at their facility in Rochester, Minnesota caused diesel fuel to be added to several shipments of gasoline.
"The exact percentage of diesel we believe is relatively small. However it does have an impact on some of the fuel not meeting state specifications," said Bruce Heine from Magellan.
Heine said around 50 stations received the tainted gas in Wisconsin, Minnesota and Iowa on Friday.
Read more: https://www.wpr.org/tainted-gas-could-have-reached-more-15-gas-stations-wisconsin