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 C85 | VP X85L | VP C9 |
|---|---|---|---|
| RON | 106 | >120 | 98.5 |
| MON | 86.5 | 120 | 95 |
| (R+M)/2 | 96.3 | >120 | 96.8 |
| Specific gravity | 0.7940 (793 kg/m³ at 15 °C) | 0.7850 (784 kg/m³ at 15 °C) | 0.7225 (722 kg/m³ at 15 °C) |
| RVP | 5.98 psi (41.2 kPa) | 4.09 psi (28.2 kPa) | 6.89 psi (47.5 kPa) |
| Oxygen content | 31.97% | 29.95% | 0% |
| Fuel type | Ethanol | Ethanol | Unleaded |
| Colour | Yellow | Light Purple | Red |
| Leaded | No | Yes | No |
| Oxidation stability | >1440 min | >1440 min | >1440 min |
| Distillation — IBP | 119.8°F (48.8°C) | 145.6°F (63.1°C) | 91.8°F (33.2°C) |
| Distillation — 10% | 153.9°F (67.7°C) | 164.1°F (73.4°C) | 140°F (60.0°C) |
| Distillation — 50% | 167°F (75.0°C) | 170.1°F (76.7°C) | 217°F (102.8°C) |
| Distillation — 90% | 171°F (77.2°C) | 171.7°F (77.6°C) | 248.4°F (120.2°C) |
| Distillation — FBP | 182.3°F (83.5°C) | 185.7°F (85.4°C) | 376°F (191.1°C) |
| H:C ratio | 2.85 | 2.81 | 1.99 |
| O:C ratio | 0.45 | 0.4 | 0 |
| Stoichiometric A/F ratio | 9.2 | 9.78 | 14.73 |
Typical values as published by VP Racing Fuels.
You're comparing the maximum of three blends. Remove one to add another.