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ORR # 2002-054 DEPARTMENT OF AGRICULTURE
LABORATORY DIVISION
REGULATION NO. 564. AUTOMOTIVE GASOLINE PURITY, ADDITIVES, AND GRADING
Filed with the Secretary of State on
These rules take effect 7 days after filing with the Secretary of State
(By authority conferred on the director of the department of agriculture by section 3 of 1984 PA 44, MCL 290.643)
R 285.564.1, R 285.564.2, R 285.564.3, R 285.564.4, R 285.564.5, R 285.564.6, R 285.564.7, R
285.564.8, R 285.564.10, R 285.564.11 and R 285.564.13 of the Michigan Administrative Code are amended and R 285.564.9 is rescinded as follows:
R 285.564.1 Definitions.
Rule 1. (1) As used in these rules:
(a) "Act" means 1984 PA 44, MCL 290.641 et seq.
(b) "Antiknock index (AKI)" means (RON + MON)/2.
(c) "ASTM" means the scientific and technical organization founded for the development of standards and located at 100 Barr Harbor Drive, W. Conshohocken, PA 19428-2959.
(d) "Maximum phase separation temperature" means the temperature of a gasoline containing alcohol which retains water in solution or in a stable suspension.
(e) "Motor octane number (MON)" means a knock characteristic of automotive gasoline determined by use of standard procedures on a motor engine.
(f) "Research octane number (RON)" means a knock characteristic of automotive gasoline determined by use of standard procedures on a research engine.
(2) The terms defined in the act have the same meanings when used in these rules.
R 285.564.2 Permissible oxygen content in gasoline; gasoline clarity.
Rule 2. (1) The calculated oxygen content permitted in any gasoline sample shall not exceed 3.7% by weight. The percentage of oxygen by weight shall be calculated on the basis of the oxygenate added per 1% volume, without regard to the actual gravity of the finished gasoline, as listed in the following table:
Table 1
Oxygenate added
Percentage by Weight 1% Volume oxygenate
of
oxygen
per
Methanol
.53%
Ethanol
.37%
Tertiary butyl alcohol
.23%
The following are examples of calculated oxygen equivalents:
(a) Gasoline having 10% by volume ethanol. Oxygen by weight: 10 x .37 =3.7%.
(b) Gasoline having 4 1/2% by volume methanol and 4 1/2% by volume tertiary butyl alcohol. Oxygen by weight: 4.5 x .53 + 4.5 x .23 = 3.4%.
(c) Gasoline having 11% by volume methyl-tertiary butyl ether and 3% by volume methanol. Oxygen by weight: 11 x .18 + 3 x .53 = 3.6%
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. Beginning June 1, 2003, 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.
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) The 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.
R 285.564.4 Grades of gasoline; specifications.
Rule 4. All uniform and special grades of gasoline shall meet the following specifications:
(a) The test method for oxygenates shall be ASTM standard D5599-95. If the total amount of any alcohol contained is 1% by volume or greater, the pump shall be posted with an alcohol notice. Gasoline containing alcohol shall meet all other specifications contained in these rules. Beginning June 1, 2003, there shall not be intentional addition of methyl tertiary butyl ether (MTBE) to the gasoline.
(b) The test method for corrosion shall be ASTM standard D 130-94. Copper strip corrosion shall not exceed No. 1 on the test scale specified in test method ASTM standard D 130-94.
(c) The test method for distillation range shall be ASTM standard D86-00. In addition, all of the following provisions apply to the distillation range:
(i) The 10% evaporated temperature shall not exceed any of the following:
(A) One hundred and twenty-two degrees Fahrenheit during the months of January, February, March, November, and December.
(B) One hundred and thirty-one degrees Fahrenheit during the months of April, May, September, and October.
(C) One hundred and fifty eight degrees Fahrenheit during the months of June, July, and August.
(D) During the transition months of March, April, May, September, and November, the next higher evaporated temperature specification may be used.
(ii) The 50% evaporated temperature shall be all of the following:
(A) Not less than 150 degrees Fahrenheit and shall not exceed 230 degrees Fahrenheit during the months of January, February, and December.
(B) Not less than 150 degrees Fahrenheit and shall not exceed 235 degrees Fahrenheit during the months of March, April, May, September, October, and November.
(C) Not less than 170 degrees Fahrenheit and shall not exceed 250 degrees Fahrenheit during the months of June, July, and August
(iii) The 90% evaporated temperature shall not exceed any of the following:
(A) Three hundred and sixty five degrees Fahrenheit during the months of January, February, March, October, November, and December.
(B) Three hundred and seventy four degrees Fahrenheit during the months of April, May, June, July, August, September.
(iv) The end point shall not exceed 437 degrees Fahrenheit.
(v) The residue shall not exceed 2%.
(vi) The driveability index shall be derived using ASTM D4814-01a. All digits in the values are significant digits. The driveability index at the refinery shall not do any of the following:
(A) Exceed 1250 degrees Fahrenheit during the months of April, May, June, July, August and September.
(B) Exceed 1220 degrees Fahrenheit during the months of March, October, and November.
(C) Exceed 1200 degrees Fahrenheit during the months of January, February, and December.
(D) The test method for solvent washed gum shall be ASTM standard D 381-99.The solvent washed gum shall not exceed 5.0 mg per 100.0 ml.
(E) The test method for maximum phase separation temperature shall be ASTM D6422. The maximum temperature for phase separation of gasoline containing alcohol shall be 1 of the following temperatures listed in table 2:
Table 2
Lower Peninsula
Month
Maximum temperature for phase separation degrees Fahrenheit
(CELSIUS)
January
0 (-18)
February
1 (-17)
March
10 (-12)
April
27 (-3)
May
34 (1)
June
45 (7)
July
50 (10)
August
48 (9)
September
41 (5)
October
32 (0)
November
21 (-6)
December
7 (-14)
Upper Peninsula
Month
Maximum temperature for phase separation degrees Fahrenheit
(CELSIUS)
January
-6 (-21)
February
-4 (-20)
March
5 (-15)
April
21 (-6)
May
30 (-1)
June
43 (6)
July
48 (9)
August
48 (9)
September
39 (4)
October
30 (-1)
November
16 (-9)
December
0 (-18)
(F)The test method for vapor pressure for gasoline and gasoline oxygenate blends shall be ASTM D6378-99e1.
For gasoline containing alcohol, the vapor pressure shall not exceed any of the following:
(i) Sixteen and one-half pounds per square inch during the months of January, February, March, November, and December.
(iii) Ten pounds per square inch during the months of June, July, and August except as provided in section 3 of the act and regulation 561, dispensing facility reid vapor pressure.
(G) For gasoline not containing 9-10% alcohol, the vapor pressure shall not exceed any of the following:
(i) Fifteen and one-half pounds per square inch during the months of January, February, March, November, and December.
(ii) Thirteen and one-half pounds per square inch during the months of April, May, September, and October.
(iii) Nine pounds per square inch during the months of June, July, and August except as provided in section 3 of the act and regulation 561, dispensing facility reid vapor pressure.
(H) The test method for the vapor-liquid ratio for gasoline shall be ASTM standard D 5188-99.
For gasoline, the test temperature at which the vapor-liquid ratio is a maximum of 20 to 1 shall be 1 of the following:
(i) One hundred and five degrees Fahrenheit during the months of January, February, March, November, and December.
(ii) One hundred and sixteen degrees Fahrenheit during the months of April, May, and October.
(iii) One hundred and twenty-four degrees Fahrenheit during the months of June, July,
August, and September.
(iv) During the transition months of March and November the next higher temperature specifications may be used.
R 285.564.5 Grades of leaded gasoline; additional specifications.
Rule 5. In addition to the specifications listed in R 285.564.4, all special grades of leaded gasoline shall meet both of the following specifications:
(a) The test method for sulfur shall be ASTM standard D 5453-00.
(b) The sulfur content shall not exceed 0.15% by weight.
R 285.564.6 Grades of unleaded gasoline; additional specifications.
Rule 6. In addition to the specifications listed in R 285.564.4, all uniform grades of gasoline shall meet both of the following specifications:
(a) The test method for lead content shall be ASTM standard D 5185-97. There shall be no intentional addition of lead compounds to any uniform grade of gasoline. Any single sample shall contain not more than 0.05 gram (50 milligrams) of lead per gallon.
(b) The test method for sulfur content shall be ASTM standard D 5453-00. Sulfur shall not exceed 0.10% by weight.
R 285.564.7 Antiknock index standard.
Rule 7. (1) All uniform grades of automotive gasoline shall meet the following specified standards for antiknock index (octane):
(a) Subregular: not less than 85.0 AKI.
(b) Regular: not less than 87.0 AKI and not less than 82.0 MON.
(c) Midgrade 88: not less than 88.0 AKI.
(d) Midgrade 89: not less than 89.0 AKI.
(e) Premium: not less than 90.0 AKI.
(f) Premium 91: not less than 91.0 AKI.
(g) Premium 92: not less than 92.0 AKI.
(h) Premium 93: not less than 93.0 AKI.
(i) Premium 94: not less than 94.0 AKI.
(2) The test method for antiknock index shall be ASTM standard D 2700-99 for a motor engine and ASTM standard D 2699-99 for a research engine.
(3) The formula for determination of the antiknock index shall be AKI =(RON + MON) ¸ 2.
285.564.8 Maximum phase separation temperature; test method.
Rule 8. The test method for maximum phase separation temperature shall be ASTM test method D6422.
285.564.9 Rescinded.
285.564.10 Vapor/liquid test method for gasoline containing alcohol or ether.
Rule 10. The test method for vapor/liquid for gasoline containing alcohol or ether, or both, shall be D 5188-99.
285.564.11 ASTM standards; adoption by reference.
Rule 11. (1) The department adopts the following standards of the ASTM for gasoline or an ASTM method approved by the department:
(a) D 86-01.
(b) D 130–94.
(c) D 6378-99e1 or D5191-01. (d) D 381–99.
(e) D 5188-99.
(f) D 5453-00.
(g) D 2699–99.
(h) D 2700–99.
(i) D 5599-00.
(2) Copies of these standards may be obtained, at actual printing and mailing cost, by writing to the Department of Agriculture, Laboratory Division, 940 Venture Lane, Williamston, Michigan 48895, or, for a fee as specified in this subrule, from the ASTM, 100 Barr Harbor Drive, W. Conshohocken, PA 19428-2959. The ASTM standards are composed of volumes priced as follows:
Volume 05.01: D 56 to D 1660.....................................$186.00.
Volume 05.02: D 1661 to D 2896.................................$207.00.
Volume 05.03: D 2981 to latest...................................$196.00.
R 285.564.13 Waivers granted by United States environmental protection agency; listing.
Rule 13. Gasoline which does not meet the specifications established in R 285.564.4 (c) and (f), but which is permitted by the United States environmental protection agency by regulatory citation at 44
F.R. p. 20777(April 6, 1979) or 47 F.R. p. 14596 (April 5, 1982) pursuant to section 211(f)(4) of the clean air act, 42 U.S.C. S7545, and leaded gasoline made under the same formula with leaded gasoline substituted for unleaded gasoline may be marketed and graded based upon the AKI. Gasoline marketed under a valid waiver shall be listed with the department. The listing shall state the gasoline brand name and the grade specification and shall include proof of a valid waiver, a copy of the complete fuel specification, and a copy of the complete test results indicating the fuel meets the specifications.
