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Fuels and Fuel Additives

Conventional Gasoline Parameters by Reporting Year (1997 - 2002)

 

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
Volume (gal) 38,261,203,878 38,235,437,294 38,353,784,803 37,987,455,417 38,911,080,595 40,432,710,530
Oxygen(Wt%) 0.27 0.65 0.72 0.66 0.63 0.71
API Gravity 57.5 58.2 58.2 57.8 57.9 57.9
Methanol(%Vol)
 0.00 0.01 0.00 0.01 0.01 0.01
MTBE(%Vol) 1.08 1.91 1.94 1.60 1.73 1.73
Ethanol(%Vol) 0.10 0.59 0.84 0.85 0.74 0.95
ETBE(%Vol) 0.00 0.00 0.00 0.01 0.01 0.00
TAME(%Vol) 0.06 0.23 0.13 0.23 0.28 0.33
T-Butanol(%Vol) 0.00 0.01 0.01 0.01 0.01 0.01
Sulfur(ppm) 323.26 306 310 317 302 297
Aromatics(%Vol)
 27.2 27.4 27.6 28.5 28.3 28.0
Olefins(%Vol) 12.5 11.6 11.8 11.8 12.8 12.1
Benzene(%Vol) 1.13 1.13 1.16 1.15 1.17 1.11
RVP(psi) 8.69 8.33 8.32 8.27 8.27 8.27
T50(F) 212.0 212.4 211.6 211.9 212.5 213.9
T90(F) 335.2 336.4 334.2 335.6 333.5 335.1
E200 45.2 44.8 45.2 45.1 45.2 45.0
E300 73.7 80.9 81.1 80.7 81.1 80.6


Averaged Wintertime Parameters

1997 1998 1999 2000 2001 2002
Volume (gal) 40,832,215,402 45,319,500,716 46,895,750,201 48,165,314,516 49,132,678,390 49,359,156,951
Oxygen(Wt%) 0.19 0.75 0.74 0.74 0.76 0.73
API Gravity 60.8 61.6 61.4 61.5 61.1 61.2
Methanol(%Vol) 0.00 0.01 0.00 0.00 0.01 0.01
MTBE(%Vol) 0.69 1.94 1.78 1.38 1.50 1.37
Ethanol(%Vol) 0.03 0.91 0.99 1.20 1.22 1.22
ETBE(%Vol) 0.00 0.00 0.00 0.01 0.01 0.00
TAME(%Vol) 0.03 0.23 0.11 0.15 0.18 0.25
T-Butanol(%Vol) 0.00 0.01 0.01 0.01 0.01 0.01
Sulfur(ppm) 318 287 306 291 292 292
Aromatics(%Vol)
 25.0 24.7 24.9 24.8 25.4 25.0
Olefins(%Vol) 12.2 11.3 11.5 12.0 12.5 11.8
Benzene(%Vol) 1.15 1.08 1.08 1.08 1.14 1.07
RVP(psi) 11.99 12.17 12.12 12.06 11.95 12.05
T50(F) 198.0 199.4 199.7 199.1 202.2 201.4
T90(F) 327.4 327.2 328.2 325.7 327.3 327.2
E200 50.4 50.2 50.1 50.4 49.8 50.1
E300 79.3 83.3 83.1 83.4 83.3 83.2

 

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