||Finished motor gasoline not included in the oxygenated or reformulated gasoline categories.
Excludes reformulated gasoline blendstock for oxygenate blending (RBOB)
as well as other blendstock.
|Finished Aviation Gasoline
||A complex mixture of relatively volatile hydrocarbons with or without small quantities of
additives, blended to form a fuel suitable for use in aviation reciprocating engines. Fuel
specifications are provided in ASTM Specification D 910 and Military Specification MIL-G-5572.
Note: Data on blending components are not counted in data on finished aviation gasoline.
||The classification of gasoline by octane ratings. Each type of gasoline (conventional
and reformulated) is classified by three grades - regular, midgrade, and
premium. Note: gasoline sales are reported by grade in accordance with their classification
at the time of sale. In general, automotive octane requirements are lower at high altitudes.
Therefore, in some areas of the United States, such as the Rocky Mountain States, the
octane ratings for the gasoline grades may be 2 or more octane points lower.
||A light petroleum distillate that is used in space heaters, cook stoves, and water heaters
and is suitable for use as a light source when burned in wick-fed lamps. Kerosene has a
maximum distillation temperature of 400 degrees Fahrenheit at the 10-percent recovery point,
a final boiling point of 572 degrees Fahrenheit, and a minimum flash point of 100 degrees
Fahrenheit. Included are No. 1-K and No. 2-K, the two grades recognized by ASTM Specification
D 3699 as well as all other grades of kerosene called range or stove oil, which have properties
similar to those of No. 1 fuel oil. See Kerosene-Type Jet Fuel.
|Kerosene-Type Jet Fuel
||A kerosene-based product having a maximum distillation temperature of 400 degrees Fahrenheit at
the 10-percent recovery point and a final maximum boiling point of 572 degrees Fahrenheit
and meeting ASTM Specification D 1655 and Military Specifications MIL-T-5624P and MIL-T-83133D
(Grades JP-5 and JP-8). It is used for commercial
and military turbojet and turboprop aircraft engines.
||Gasoline having an antiknock index, i.e., octane rating, greater than or equal to 88
and less than or equal to 90. Note: Octane requirements may vary by altitude.
|Motor Gasoline (Finished)
||A complex mixture of relatively volatile hydrocarbons with or without small quantities of
additives, blended to form a fuel suitable for use in spark-ignition engines. Motor gasoline,
as defined in ASTM Specification D 4814 or Federal Specification VV-G-1690C, is characterized
as having a boiling range of 122 to 158 degrees Fahrenheit at the 10 percent recovery point to
365 to 374 degrees Fahrenheit at the 90 percent recovery point. Motor Gasoline includes
conventional gasoline; all types of oxygenated gasoline, including gasohol; and
reformulated gasoline, but excludes aviation gasoline. Note: Volumetric data on blending
components, such as oxygenates, are not counted in data on finished motor gasoline until
the blending components are blended into the gasoline.
|Naphtha-Type Jet Fuel
||A fuel in the heavy naphtha boiling range having an average gravity of 52.8 degrees API,
20 to 90 percent distillation temperatures of 290 degrees to 470 degrees Fahrenheit, and
meeting Military Specification MIL-T-5624L (Grade JP-4). It is used primarily for
military turbojet and turboprop aircraft engines because it has a lower freeze point
than other aviation fuels and meets engine requirements at high altitudes and speeds.
|No. 1 Distillate
||A light petroleum distillate that can be used as either a diesel fuel (see No. 1 Diesel Fuel)
or a fuel oil.
No. 1 Diesel Fuel: A light distillate fuel oil that has distillation temperatures of
550 degrees Fahrenheit at the 90-percent point and meets the specifications defined in ASTM
Specification D 975. It is used in high-speed diesel engines generally operated under frequent
speed and load changes, such as those in city buses and similar vehicles.
No. 1 Fuel Oil: A light distillate fuel oil that has distillation temperatures of 400 degrees Fahrenheit
at the 10-percent recovery point and 550 degrees Fahrenheit at the 90-percent point and
meets the specifications defined in ASTM Specification D 396. It is used primarily as fuel
for portable outdoor stoves and portable outdoor heaters.
|No. 2 Diesel Fuel
||A fuel that has distillation temperatures of 500 degrees Fahrenheit at the 10-percent
recovery point and 640 degrees Fahrenheit at the 90-percent recovery point and meets the
specifications defined in ASTM Specification D 975. It is used in high-speed diesel engines
that are generally operated under uniform speed and load conditions,
such as those in railroad locomotives, trucks, and automobiles.
|No. 2 Diesel Fuel, High Sulfur
||No. 2 diesel fuel that has a sulfur level above 500 ppm.
|No. 2 Diesel Fuel, Low Sulfur
||No. 2 diesel fuel that has a sulfur level between 15 ppm and 500 ppm (inclusive).
It is used primarily in motor vehicle diesel engines for on-highway use.
|No. 2 Diesel Fuel, Ultra Low Sulfur
||No. 2 diesel fuel that has a sulfur level no higher than 15 ppm. It is used
primarily in motor vehicle diesel engines for on-highway use.
|No. 2 Distillate
||A petroleum distillate that can be used as either a diesel fuel (see No. 2 Diesel Fuel) or a fuel oil
(see No. 2 Fuel Oil).
|No. 2 Fuel Oil (Heating Oil)
||A distillate fuel oil that has a distillation temperature of 640 degrees Fahrenheit
at the 90-percent recovery point and meets the specifications defined in ASTM
Specification D 396. It is used in atomizing type burners for domestic heating
or for moderate capacity commercial/industrial burner units.
|No. 4 Fuel Oil
||A distillate fuel oil made by blending distillate fuel oil and residual fuel oil stocks.
It conforms with ASTM Specification D 396 or Federal Specification VV-F-815C and is used
extensively in industrial plants and in commercial burner installations that are not
equipped with preheating facilities. It also includes No. 4 diesel fuel used for low-
and medium-speed diesel engines and conforms to ASTM Specification D 975.
||A number used to indicate gasoline's antiknock performance in motor vehicle engines.
The two recognized laboratory engine test methods for determining the antiknock rating, i.e.,
octane rating, of gasolines are the Research method and the Motor method. To provide a
single number as guidance to the consumer, the antiknock index (R + M)/2, which is the
average of the Research and Motor octane numbers, was developed.
||"Oxygenated Fuels Program Reformulated Gasoline" is reformulated gasoline which is intended
for use in an oxygenated fuels program control area during an oxygenated fuels program
||Finished motor gasoline, other than reformulated gasoline, having an oxygen content of 2.7
percent or higher by weight and required by the U.S. Environmental Protection Agency (EPA)
to be sold in areas designated by EPA as carbon monoxide (CO) nonattainment areas.
Note: Oxygenated gasoline excludes oxygenated fuels program reformulated gasoline (OPRG)
and reformulated gasoline blendstock for oxygenate blending (RBOB). Data on gasahol that
has at least 2.7 percent oxygen, by weight, and is intended for sale inside CO nonattainment
areas are included in data on oxygenated gasoline. Other data on gasahol are included in data
on conventional gasoline.
|Petroleum Administration for Defense (PAD) Districts
||PADD 1 (East Coast):
PADD 1A (New England): Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont.
PADD 1B (Central Atlantic): Delaware, District of Columbia, Maryland, New Jersey, New York, Pennsylvania.
PADD 1C (Lower Atlantic): Florida, Georgia, North Carolina, South Carolina, Virginia, West Virginia.
PADD 2 (Midwest): Illinois, Indiana, Iowa, Kansas, Kentucky, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, Oklahoma, South Dakota, Tennessee, Wisconsin.
PADD 3 (Gulf Coast): Alabama, Arkansas, Louisiana, Mississippi, New Mexico, Texas.
PADD 4 (Rocky Mountain): Colorado, Idaho, Montana, Utah, Wyoming.
PADD 5 (West Coast): Alaska (North Slope and Other Mainland), Arizona, California,
Hawaii, Nevada, Oregon, Washington.
||Gasoline having an antiknock index, i.e., octane rating, greater than 90.
Note: Octane requirements may vary by altitude.
||A firm that produces, imports, or transports selected petroleum products across
State boundaries and local marketing areas, and sells the product to local
distributors, local retailers, or end users.
|Propane (Consumer Grade)
||A normally gaseous paraffinic compound (C3H8), which includes all products covered by Natural Gas
Policy Act Specifications for commercial and HD-5 propane and ASTM Specification D 1835. It is
a colorless paraffinic gas that boils at a temperature of -43.67 degrees Fahrenheit. It does not
include the propane portion of any natural gas liquid mixes, i.e., butane-propane mix.
||"Reformulated Gasoline Blendstock for Oxygenate Blending" is motor gasoline blending components
intended for blending with oxygenates to produce finished reformulated gasoline.
|Reformulated Gasoline (RFG)
||Finished motor gasoline formulated for use in motor vehicles, the composition and properties
of which meet the requirements of the reformulated gasoline regulations promulgated by the
U.S. Environmental Protection Agency under Section 211(k) of the Clean Air Act.
This category includes oxygenated fuels program reformulated gasoline (OPRG) but excludes
reformulated gasoline blendstock for oxygenate blending (RBOB).
||Gasoline having an antiknock index (average of the research octane rating and the motor octane
number) greater than or equal to 85 and less than 88. Note: Octane requirements may vary by altitude.
|Residual Fuel Oil
||A general classification for the heavier oils, known as No. 5 and No. 6 fuel oils, that remain
after the distillate fuel oils and lighter hydrocarbons are distilled away in refinery
operations. It conforms to ASTM Specifications D 396 and D 975 and Federal Specification
VV-F-815C. No. 5, a residual fuel oil of medium viscosity, is also known as Navy Special
and is defined in Military Specification MIL-F-859E, including Amendment 2 (NATO Symbol F-770).
It is used in steam-powered vessels in government service and inshore powerplants.
No. 6 fuel oil includes Bunker C fuel oil and is used for the production of electric power,
space heating, vessel bunkering, and various industrial purposes.
||A yellowish nonmetallic element, sometimes known as "brimstone." It is present at various
levels of concentration in many fossil fuels whose combustion releases sulfur compounds that
are considered harmful to the environment. Some of the most commonly used fossil fuels are
categorized according to their sulfur content, with lower sulfur fuels usually selling at a