[Code of Federal Regulations]
[Title 40, Volume 17]
[Revised as of July 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR86.113-04]

[Page 453-455]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 86_CONTROL OF EMISSIONS FROM NEW AND IN-USE HIGHWAY VEHICLES AND 
ENGINES--Table of Contents
 
 Subpart B_Emission Regulations for 1977 and Later Model Year New Light-
 
Sec. 86.113-04  Fuel specifications.

    This section includes text that specifies requirements that differ 
from Sec. 86.113-94. Where a paragraph in Sec. 86.113-94 is identical 
and applicable to this section, this will be indicated by specifying the 
corresponding paragraph and the statement ``[Reserved]. For guidance see 
Sec. 86.113-94.''.
    (a) Gasoline fuel. (1) Gasoline having the following specifications 
will be used by the Administrator in exhaust

[[Page 454]]

and evaporative emission testing of petroleum-fueled Otto-cycle 
vehicles, except that the Administrator will not use gasoline having a 
sulfur specification higher than 0.0045 weight percent. Gasoline having 
the following specification or substantially equivalent specifications 
approved by the Administrator, must be used by the manufacturer in 
exhaust and evaporative testing except that octane specifications do not 
apply:

------------------------------------------------------------------------
                                    ASTM test method
              Item                        No.                Value
------------------------------------------------------------------------
Octane, Research, Min...........  D 2699.............                 93
Sensitivity, Min................  ...................                7.5
Lead (organic), max. g/U.S. gal.  D 3237.............      0.050 (0.013)
 (g/liter).
Distillation Range:                D 86..............  .................
    IBP1:deg. F (deg. C)........  ...................    75-95 (23.9-35)
    10 pct. point: deg.F (deg.C)  ...................     120-135 (48.9-
                                                                   57.2)
    50 pct. point: deg.F.         ...................     200-230 (93.3-
     (deg.C).                                                       110)
    90 pct. point: deg.F (deg.C)  ...................    300-325 (148.9-
                                                                  162.8)
    EP, max: deg.F (deg.C)......  ...................        415 (212.8)
Sulfur, weight pct..............  D 1266.............       0.0015-0.008
Phosphorous, max. g/U.S. gal (g/  D 3231.............     0.005 (0.0013)
 liter).
RVP 2,3.........................  D 3231.............     8.7-9.2 (60.0-
                                                                   63.4)
Hydrocarbon composition:          D 1319.............  .................
    Olefins, max. pct...........  ...................                 10
    Aromatics, max, pct.........  ...................                 35
    Saturates...................  ...................         Remainder
------------------------------------------------------------------------
\1\ For testing at altitudes above 1,219 m (4000 feet), the specified
  range is 75-105 deg. F (23.9-40.6 deg. C).
\2\ For testing which is unrelated to evaporative emission control, the
  specified range is 8.0-9.2 psi (55.2-63.4 kPa).
\3\ For testing at altitudes above 1,219 m (4000 feet), the specified
  range is 7.6-8.0 psi (52-55 kPa).

    (2) For light-duty vehicles, light-duty trucks and medium-duty 
passenger vehicles certified for 50 state sale, and for Tier 2 and 
interim non-Tier 2 vehicles whose certification is carried over from the 
NLEV program or carried across from the California LEV I program, 
``California Phase 2'' gasoline having the specifications listed in the 
table in this section may be used in exhaust emission testing as an 
option to the specifications in paragraph (a)(1) of this section. If a 
manufacturer elects to utilize this option, the manufacturer must 
conduct exhaust emission testing with gasoline having the specifications 
listed in the table in this paragraph (a)(2) and in the case of interim 
non-Tier 2 LDV/Ts and interim non-Tier 2 MDPVs whose certification is 
carried over from the NLEV program or carried across from California LEV 
I program certification the Administrator must also conduct exhaust 
emission testing with gasoline having the specifications listed in the 
table in this paragraph (a)(2). However, the Administrator may use or 
require the use of test fuel meeting the specifications in paragraph 
(a)(1) of this section for certification confirmatory testing, selective 
enforcement auditing and in-use testing for all other vehicles. All fuel 
property test methods for this fuel are contained in Chapter 4 of the 
California Regulatory Requirements Applicable to the National Low 
Emission Vehicle Program (October, 1996). These requirements are 
incorporated by reference (see Sec. 86.1). The table follows:

------------------------------------------------------------------------
           Fuel property                            Limit
------------------------------------------------------------------------
Octane, (R+M)/2 (min)..............  91
Sensitivity (min)..................  7.5
Lead, g/gal (max) (No lead added)..  0-0.01
Distillation range, [deg]F.........
10 pct. point,.....................  130-150
50 pct. point,.....................  200-210
90 pct. point,.....................  290-300
EP, maximum........................  390
Residue, vol% (max)................  2.0

[[Page 455]]


Sulfur, ppm by wt..................  15-40, except that administrator
                                      may use and approve for use, lower
                                      ranges where such ranges are
                                      consistent with current California
                                      requirements.
Phosphorous, g/gal (max)...........  0.005
RVP, psi...........................  6.7-7.0
Olefins, vol%......................  4.0-6.0
Total aromatic hydrocarbons (vol%).  22-25
Benzene, vol%......................  0.8-1.0
Multi-substituted alkyl Aromatic     12-14
 hydrocarbons, vol%.
MTBE, vol %........................  10.8-11.2
Additives:.........................  See chapter 4 of the California
                                      Regulatory Requirements Applicable
                                      to the National Low Emission
                                      Vehicle Program (October, 1996).
                                      These procedures are incorporated
                                      by reference (see Sec. 86.1).
Copper corrosion...................  No. 1.
Gum, washed, mg/100 ml (max).......  3.0
Oxidation stability, minutes (min).  1000
Specific gravity...................  No limit; report to purchaser
                                      required.
Heat of combustion.................  No limit; report to purchaser
                                      required.
Carbon, wt%........................  No limit; report to purchaser
                                      required.
Hydrogen, wt%......................  No limit; report to purchaser
                                      required.
------------------------------------------------------------------------

    (3)(i) Unless otherwise approved by the Administrator, unleaded 
gasoline representative of commercial gasoline that will be generally 
available through retail outlets must be used in service accumulation. 
For model years 2004 and later, and unless otherwise approved by the 
Administrator, this gasoline must have a minimum sulfur content of 15 
ppm. Unless otherwise approved by the Administrator, where the vehicle 
is to be used for evaporative emission durability demonstration, such 
fuel must contain ethanol as required by Sec. 86.1824-01(a)(2)(iii). 
Leaded gasoline must not be used in service accumulation.
    (ii) Unless otherwise approved by the Administrator, the octane 
rating of the gasoline used must be no higher than 1.0 Retail octane 
number above the lowest octane rating that meets the fuel grade the 
manufacturer will recommend to the ultimate purchaser for the relevant 
production vehicles. If the manufacturer recommends a Retail octane 
number rather than a fuel grade, then the octane rating of the service 
accumulation gasoline can be no higher than 1.0 Retail octane number 
above the recommended Retail octane number. The service accumulation 
gasoline must also have a minimum sensitivity of 7.5 octane numbers, 
where sensitivity is defined as the Research octane number minus the 
Motor octane number.
    (iii) The Reid Vapor Pressure of the gasoline used must be 
characteristic of the motor fuel used during the season in which the 
service accumulation takes place.
    (4) The specification range of the gasoline to be used under this 
paragraph (a) must be reported in accordance with Sec. Sec. 86.094-
21(b)(3) and 86.1844-01.
    (b)-(g) [Reserved]. For guidance see Sec. 86.113-94.

[65 FR 6848, Feb. 10, 2000]