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SS 100® is an unleaded high octane gasoline that is street-legal in California and a few other locations that follow CARB regulations. Its 100 octane rating will allow increased boost levels in supercharged or turbocharged applications compared to premium pump gas. Sunoco SS 100 can be used in high performance vehicles both old and new. It can also be used in applications such as motorcycles, ATVs, karts, and other smaller engine vehicles.

Legal Notice
Legal:
Street legal in California only.
| Color | Not Dyed |
| Octane (R+M)/2 | 100 |
| Research Octane | 104 |
| Motor Octane | 96 |
| Specific Gravity | 0.715 |
| Weight (lbs/gallon) | 6 |
| Reid Vapor Pressure | 6.8 |
| Initial Boiling Point | 100 |
| 10% Evaporation | 140 |
| 50% Evaporation | 208 |
| 90% Evaporation | 211 |
| Final Boiling Point | 220 |
| Stoichiometric Air/Fuel Ratio | 14.2 |
| Oxygen (Weight%) | 3.5 |
| Ethanol (Volume%) | 9.5 |
| Leaded | No (Unleaded) |