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CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER C—AIR PROGRAMS (Parts 50–99) > PART 86—CONTROL OF EMISSIONS FROM NEW AND IN-USE HIGHWAY VEHICLES AND ENGINES > SUBPART N—Emission Regulations for New Otto-Cycle and Diesel Heavy-Duty Engines; Gaseous and Particulate Exhaust Test Procedures (§86.1301 to §86.1380-2004) > 86.1313-98—Fuel specifications.

CFR

86.1313-98—Fuel specifications.

Section 86.1313-98 includes text that specifies requirements that differ from § 86.1313-94. Where a paragraph in § 86.1313-94 is identical and applicable to § 86.1313-98, this may be indicated by specifying the corresponding paragraph and the statement “[Reserved]. For guidance see § 86.1313-94 ”.
(a) through (b)(1) [Reserved]. For guidance see § 86.1313-94.
(b) (2) Petroleum fuel for diesel engines meeting the specifications in Table N98-2, or substantially equivalent specifications approved by the Administrator, shall be used in exhaust emissions testing. The grade of petroleum fuel used shall be commercially designated as “Type 2-D” grade diesel fuel except that fuel commercially designated at “Type 1-D” grade diesel fuel may be substituted provided that the manufacturer has submitted evidence to the Administrator demonstrating to the Administrator's satisfaction that this fuel will be the predominant in-use fuel. Such evidence could include such things as copies of signed contracts from customers indicating the intent to purchase and use “Type 1-D” grade diesel fuel as the primary fuel for use in the engines or other evidence acceptable to the Administrator.
Table N98-2
Item ASTM test method No. Type 1-D Type 2-D
Cetane Number D 613 40-54 40-50
Cetane Index D 976 40-54 40-50
Distillation range:
IBP °F D 86 330-390 340-400
(°C) (165.6-198.9) (171.1-204.4)
10 pct. point °F D 86 370-430 400-460
(°C) (187.8-221.1) (204.4-237.8)
50 pct. point °F D 86 410-480 470-540
(°C) (210.0-248.9) (243.3-282.2)
90 pct. point °F D 86 460-520 560-630
(°C) (237.8-271-1) (293.3-332.2)
EP °F D 86 500-560 610-690
(°C) (260.0-293.3) (321.1-365.6)
Gravity °API D 287 40-44 32-37
Total sulfur pct. D 2622 0.03-0.05 0.03-0.05
Hydrocarbon composition:
Aromatics, minimum pct. D 5186 8 27
Paraffins, Naphthenes, Olefins D 1319 1 1
Flashpoint, min. °F D 93 120 130
(°C) (48.9) (54.4)
Viscosity centistokes D 445 1.6-2.0 2.0-3.2
1 Remainder.
(b) (3) through (e) [Reserved]. For guidance see § 86.1313-94.

Code of Federal Regulations

[62 FR 47126, Sept. 5, 1997, as amended at 65 FR 8278, Feb. 18, 2000]
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