A method of preventing improper mixing of additives in a refueling storage tank includes receiving, by a computing device, data related to an additive introduced to the refueling storage tank from a sensor positioned in the refueling storage tank. The additive introduced to the refueling tank is determined, by the computing device, based on the data received from the sensor. An output is provided, by the computing device, when the determined additive does not match a predetermined additive for the refueling storage tank. Devices and systems for preventing improper mixing of additives in a refueling storage tank are also disclosed.