“Drivers have reported vehicles breaking down and being left stranded due to bad fuel from numerous gas stations across the Denver metro area.”
https://kdvr.com/news/local/bad-fuel-causing-issues-for-drivers-around-denver-metro-area/
Probably just one delivery driver putting the wrong fuel into the the different gas stations fuel tanks… Could be several causes, a driver who does not know what they are doing. the wrong fuel was put into the tanker, or the paperwork the driver is using is wrong…