Sunoco Race Fuels
Property Standard
LeadedSupreme
LeadedMO2X HCR Plus Maximal
Leaded
Specific Gravity
0.728
0.715
0.717
0.739
0.708
Antiknock Index (R+M)/2
110
112
112
114
116
RON, Research Octane
115
114
115
118
118
MON, Motor Octane
105
110
109
110
114
Reid Vapor Pressure
5.6
6.3
9.8
6.0
5.9
Distillation, ºF
Initial Boiling Point
100
98
92
102
103
10% Evaporation
179
170
122
181
170
50% Evaporation
222
219
208
217
217
90% Evaporation
248
232
229
226
232
Final Boiling Point
369
257
251
245
257
Leaded
Yes
Yes
Yes
Yes
Yes
Color
Purple
Blue
Green
Orange
Red
Oxygen, Wt.%
0.0
0.0
2.7%
0.0
0.0
Lbs./Gallon
6.06
5.95
5.97
6.15
5.88
Dielectric Constant
-0.1
-0.7
6.9
0.6
-0.9
