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Fuels and Fuel Additives

Conventional Gasoline Parameters by Reporting Year (1997-2005)

Note: This information is based on individual RFG & Anti-Dumping Batch Reports from Importers and Domestic Refiners. California gasolines are not represented in this data. This information is derived from report data and was not measured directly by EPA.

Each parameter value is a volume weighted average calculated when a volume and a parameter were both reported - parameter values are not typical for the total volumes listed. RFG volumes may not account for oxygenates added downstream. Parameter averages were compiled individually and may be subject to errors in reporting.

The Oxygen(wt%) average values were calculated only when an Oxygen(wt%) value greater than zero was reported. All Oxygenate(vol%) values (MTBE, Methanol, Ethanol, ETBE, etc.) were calculated as a group based on the presence of a reported value for Oxygen(wt%) that was greater than zero.



Averaged Summertime Parameters

  1997 1998 1999 2000 2001 2002 2003 2004 2005
Volume (gal) 38,690,
157,870
39,072,
967,866
39,022,
783,372
38,259,
085,137
38,995,
921,017
40,794,
023,525
43,360,
443,576
43,036,
326,249
40,903,
742,586
Oxygen(Wt%) 0.27 0.65 0.72 0.66 0.63 0.71 0.81 0.97 0.95
API Gravity 58.2 58.1 58.2 57.7 57.5 57.7 57.3 58.1 58.4
Methanol(%Vol) 0.00 0.01 0.00 0.01 0.01 0.01 0.01 0.00 0.00
MTBE(%Vol) 1.08 1.91 1.81 1.62 1.73 1.73 2.18 2.19 1.66
Ethanol(%Vol) 0.10 0.59 0.84 0.84 0.74 0.93 0.98 1.52 1.75
ETBE(%Vol) 0.00 0.00 0.00 0.01 0.01 0.00 0.04 0.05 0.02
TAME(%Vol) 0.06 0.23 0.13 0.24 0.28 0.34 0.23 0.20 0.19
T-Butanol(%Vol) 0.00 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.00
Sulfur(ppm) 324 304 309 320 304 296 303 118 106
Aromatics(%Vol)
27.2 27.4 27.6 28.5 28.3 28.0 27.9 28.0 27.7
Olefins(%Vol) 12.5 11.5 11.8 11.8 12.8 12.1 12.1 11.2 12.0
Benzene(%Vol) 1.13 1.14 1.15 1.15 1.17 1.10 1.15 1.15 1.21
RVP(psi) 8.67 8.32 8.32 8.27 8.27 8.27 8.31 8.31 8.30
T50(F) 211.9 212.3 211.6 211.9 212.5 213.8 213.0 212.7 211.1
T90(F) 337.4 336.3 334.3 335.6 333.5 335.0 335.7 334.7 330.7
E200 45.2 44.8 45.2 45.2 45.2 45.0 45.2 45.2 45.7
E300 80.9 80.9 81.1 80.7 81.1 80.6 80.7 80.7 81.7


Averaged Wintertime Parameters

  1997 1998 1999 2000 2001 2002 2003 2004 2005
Volume (gal) 41,270,
507,017
46,205,
223,148
47,518,
276,313
48,297,
189,313
49,075,
905,949
49,720,
200,931
47,985,
831,528
47,701,
194,240
47,832,
739,279
Oxygen(Wt%) 0.19 0.72 0.74 0.74 0.77 0.73 0.83 1.07 1.08
API Gravity 61.3 61.5 61.4 61.4 60.8 61.0 60.7 61.8 61.9
Methanol(%Vol) 0.00 0.01 0.00 0.00 0.01 0.01 0.01 0.00 0.00
MTBE(%Vol) 0.69 1.97 1.78 1.39 1.54 1.38 1.50 1.86 1.41
Ethanol(%Vol) 0.03 0.81 0.99 1.19 1.24 1.20 1.48 1.94 2.19
ETBE(%Vol) 0.00 0.00 0.00 0.01 0.01 0.00 0.01 0.02 0.04
TAME(%Vol) 0.03 0.23 0.11 0.15 0.19 0.27 0.18 0.19 0.18
T-Butanol(%Vol) 0 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.00
Sulfur(ppm) 319 287 307 293 295 292 256 120 97
Aromatics(%Vol)
25.0 24.7 24.9 24.8 25.4 25.0 24.9 24.6 24.7
Olefins(%Vol) 12.2 11.2 11.4 12.0 12.5 11.8 11.5 11.4 11.6
Benzene(%Vol) 1.15 1.08 1.08 1.08 1.14 1.07 1.10 1.08 1.15
RVP(psi) 12.00 12.19 12.12 12.06 11.97 12.04 12.15 12.21 12.12
T50(F) 198.0 199.6 199.7 199.0 202.1 201.4 200.1 199.8 199.9
T90(F) 328.7 327.7 328.2 325.5 327.2 327.2 328.7 326.5 324.1
E200 50.4 50.2 50.1 50.4 49.9 50.2 50.4 50.8 50.9
E300 83.3 83.3 83.1 83.4 83.3 83.2 83.0 83.4 84.1

 


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