Compare VP race fuels side by side
Pick two or three blends below to see their published specs side by side — the same figures, in the same units, as each blend's own page.
| Spec | VP C9 | VP X85 | VP MR PRO6 REG |
|---|---|---|---|
| RON | 98.5 | 108 | 104 |
| MON | 95 | 95.2 | 86 |
| (R+M)/2 | 96.8 | 101.6 | 95 |
| Specific gravity | 0.7225 (722 kg/m³ at 15 °C) | 0.7800 (779 kg/m³ at 15 °C) | 0.7250 (724 kg/m³ at 15 °C) |
| RVP | 6.89 psi (47.5 kPa) | 4.22 psi (29.1 kPa) | 11.01 psi (75.9 kPa) |
| Oxygen content | 0% | 30.03% | 3.89% |
| Fuel type | Unleaded | Ethanol | Unleaded |
| Colour | Red | Colorless | Colorless |
| Leaded | No | No | No |
| Oxidation stability | >1440 min | >1440 min | >1440 min |
| Distillation — IBP | 91.8°F (33.2°C) | 140°F (60.0°C) | 100.1°F (37.8°C) |
| Distillation — 10% | 140°F (60.0°C) | 163.4°F (73.0°C) | 116°F (46.7°C) |
| Distillation — 50% | 217°F (102.8°C) | 170.6°F (77.0°C) | 147.4°F (64.1°C) |
| Distillation — 90% | 248.4°F (120.2°C) | 172°F (77.8°C) | 321.8°F (161.0°C) |
| Distillation — FBP | 376°F (191.1°C) | 174.7°F (79.3°C) | 328.2°F (164.6°C) |
| H:C ratio | 1.99 | 2.85 | 1.79 |
| O:C ratio | 0 | 0.4 | 0.04 |
| Stoichiometric A/F ratio | 14.73 | 9.81 | 13.72 |
Typical values as published by VP Racing Fuels.
You're comparing the maximum of three blends. Remove one to add another.