(c) The department shall provide oxygen equivalents for oxygenates not listed in table
1 upon request, which shall be based upon gasoline with a specific gravity of .7412 (6.17
pounds per gallon) at 60 degrees
Fahrenheit.
(d) There shall not be intentional addition of methyl tertiary butyl ether (MTBE) to the
gasoline.
(2) Gasoline shall be visually free of undissolved water, sediment, and suspended
matter. It shall be clear and bright at the ambient temperature or 70 degrees Fahrenheit
(21 degrees Celsius), whichever is higher.
(3) The finished fuel shall be free of an adulterant or contaminant that may render the
fuel unacceptable for its commonly used applications.
(4) Ethanol blended with gasoline shall meet ASTM D 4806-07 (2007).
(5) Gasoline used for blending with ethanol shall meet ASTM D 4814-08b (2008)
and the finished blend may have a 3-degree variation from the 105ºF requirements, a
10-degree variation from 116ºF requirements, and an 8-degree variation from the 124º
requirements listed in R 285.564. 4 (h) provided both of the following:
(a) The gasoline used for blending with ethanol, after the time it met ASTM D4814-
08b (2008), was not modified or altered in any way prior to or at the time of addition of
ethanol.
(b) The finished blend contains between 9% and 10% ethanol by volume.
History: 1987 AACS; 2003 AACS; 2009 AACS.
R 285.564.3 Gasoline grades.
Rule 3. (1) There shall be the following uniform grades of gasoline:
(a) "Subregular" with an AKI of 85 or above.
(b) "Regular" with an AKI of 87 or above.
(c) "Midgrade 88" with an AKI of 88 or above.
(d) "Midgrade 89" with an AKI of 89 or above.
(e) "Premium" with an AKI of 90 or above.
(f) "Premium 91" with an AKI of 91 or above.
(g) "Premium 92" with an AKI of 92 or above.
(h) "Premium 93" with an AKI of 93 or above.
(i) "Premium 94" with an AKI of 94 or above.
(2) Special grades of gasoline may be offered for sale if listed with and approved by
the department. To apply for listing, the refiner or blender shall provide the
department with the gasoline brand name, the grade specifications, and a copy of the
complete test results for all applicable standards specified in these rules and other
tests as required by the department.
History: 1987 AACS; 2003 AACS; 2009 AACS.
R 285.564.4 Grades of gasoline; specifications.
Rule 4. All uniform and special grades of gasoline shall meet the following
specifications:
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