Sunoco SR18® is our ultimate high octane, fast burning racing fuel. If you have a high compression, high RPM race engine, 118 octane Sunoco SR18 is your fuel of choice.
SR18 is an excellent choice for drag racing and truck pulling, especially large displacement applications. For oval course and road racing applications, SR18 will tolerate the high cylinder pressures in racing classes where there are no compression ratio limitations.

Legal Notice
Disclaimer:
Legal in California only for racing vehicles in sanctioned racing events.
Legal:
For off-road and racing applications only.
| Color | Yellow |
| Octane (R+M)/2 | 118 |
| Research Octane | 120 |
| Motor Octane | 116 |
| Specific Gravity | 0.704 |
| Weight (lbs/gallon) | 5.9 |
| Reid Vapor Pressure | 6 |
| Initial Boiling Point | 99 |
| 10% Evaporation | 166 |
| 50% Evaporation | 209 |
| 90% Evaporation | 213 |
| Final Boiling Point | 223 |
| Stoichiometric Air/Fuel Ratio | 15.1 |
| Oxygen (Weight%) | 0 |
| Ethanol (Volume%) | 0 |
| Methanol | 0 |
| HC Ratio | 2.2 |
| Lower Heating Value (Btu/Pound) | 18,950 |
| Lower Heating Value (Btu/Gallon) | 111,000 |
| Leaded | Yes |