(1)   

      (a)    Except as provided in par. (b), all devices used to draw petroleum products from storage containers at filling stations, garages or other places where petroleum products are sold or offered for sale shall be marked or labeled in a conspicuous place and in a conspicuous manner with the name and the grades of the petroleum product being dispensed.

      (b)   

         1.    A device that dispenses a gasoline-ethanol fuel blend for sale at retail shall be marked or labeled with the percentage of ethanol at all times when the product is offered for sale.

         2.    A device that dispenses, for sale at retail, a reformulated gasoline, as defined in s. 285.37 (1), that contains an oxygenate other than ethanol shall be marked or labeled with the identity of the oxygenate at all times when the product is offered for sale. The label shall identify the oxygenate or oxygenates in the manner specified by the department by rule.

         3.    A label under this paragraph shall be on the front or side of the upper half of the dispensing device and shall be conspicuous and legible to a customer when viewed from the driver’s seat of a motor vehicle that is located within 6 feet of the dispensing device. The device may also be marked or labeled with any product grade specifications prescribed under s. 168.04.

   (2)   No person may deliver, place, receive or store in any visible container any gasoline; any product of petroleum, regardless of name, meeting the gasoline specifications prescribed by the department under s. 168.04; or any product of petroleum commonly or commercially used as a fuel in a spark-ignition internal combustion engine or as a fuel for any appliance or device if such product of petroleum has a flash point of less than 100° F. when tested in the Tagliabue closed cup tester unless the container is constructed of sound metal or of equally sound nonflammable material meeting the requirements of the department’s flammable and combustible liquids code; is substantially a bright red color; and has the common name of the product clearly labeled or painted on it. These requirements do not apply to:

      (a)    The fuel supply tank permanently connected to an internal combustion engine;

      (b)    The fuel supply tank which is structurally a part of any appliance or device consuming the fuel;

      (c)    The first use of any container of one gallon or less originally filled by a manufacturer or packager when the container complies with the packaging and labeling requirements of the federal government and its agencies; or

      (d)    Containers of 275 gallons capacity or more. This provision does not exempt such containers from the identification requirements specified in rules promulgated by the department.

   (3)   Except for containers referred to in sub. (2) (a), (b) and (c) no person may deliver, place, receive or store any kerosene, diesel fuel or burner oil, or a like product of petroleum which has a flash point of 100° F. or more when tested in the Tagliabue closed cup tester, in any visible container which is in any manner colored red.

   (4)   No person may use interchangeably any pipeline, hose, pump or metering device to dispense gasoline, or a like product of petroleum which has a flash point of less than 100° F. when tested in the Tagliabue closed cup tester, and to dispense kerosene, diesel fuel or burner fuel oils, or a like product of petroleum which has a flash point of 100° F. or more when tested in the Tagliabue closed cup tester, unless the pipeline, hose, pump or metering device has been sufficiently flushed and cleaned before the interchanged use to eliminate any contamination of products due to the interchanged use.