Sunoco E85-R is an unleaded racing fuel containing 85 volume % ethanol, thats right, 170 proof race fuel. It can only be used in fuel systems designed specifically for E85 blends. Because it is highly oxygenated and requires increased fuel flow compared to conventional non-oxygenated fuels, consult with your fuel injection system or carburetor supplier for correct air/fuel ratio calibrations.
Sunoco E85-R is blended to consistently contain 85% ethanol. Conventional E85 can vary from about 51% to 83% ethanol or so but rarely contains 85% ethanol. Conventional E85 can also vary seasonally; the composition of Sunoco E85-R race fuel does not change. The non-ethanol portion of Sunoco E85-R is comprised of highly-refined race fuel hydrocarbons for stability and consistency. Sunoco E85-R is the racer’s fuel of choice where E85 fuels are allowed.
Legal Notice
Disclaimer:
Legal in California only for racing vehicles in sanctioned events. Octane is estimated.
Legal:
For off-road and racing applications only.
| Color | Pale Green |
| Octane (R+M)/2 | 99 |
| Research Octane | 104 |
| Motor Octane | 94 |
| Specific Gravity | 0.79 |
| Weight (lbs/gallon) | 6.6 |
| Reid Vapor Pressure | 4.2 |
| 10% Evaporation | 166 |
| 50% Evaporation | 169 |
| 90% Evaporation | 171 |
| Stoichiometric Air/Fuel Ratio | 9.8 |
| Oxygen (Weight%) | 30 |
| Ethanol (Volume%) | 85 |
| Aromatics | 6 |
| HC Ratio | 2.7 |
| OC Ratio | 0.39 |
| Lower Heating Value (Btu/Pound) | 12,500 |
| Lower Heating Value (Btu/Gallon) | 82,200 |
| Leaded | No (Unleaded) |
.svg)