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 X98 | VP C50+ REG | VP X85 |
|---|---|---|---|
| RON | 103 | 102 | 108 |
| MON | 120 | 87.5 | 95.2 |
| (R+M)/2 | >111.5 | 94.8 | 101.6 |
| Specific gravity | 0.7940 (793 kg/m³ at 15 °C) | 0.7160 (715 kg/m³ at 15 °C) | 0.7800 (779 kg/m³ at 15 °C) |
| RVP | 3.04 psi (21.0 kPa) | 10.33 psi (71.2 kPa) | 4.22 psi (29.1 kPa) |
| Oxygen content | 34.73% | 6.69% | 30.03% |
| Fuel type | Ethanol | Unleaded | Ethanol |
| Colour | Colorless | — | Colorless |
| Leaded | No | No | No |
| Oxidation stability | >1440 min | — | >1440 min |
| Distillation — IBP | 151°F (66.1°C) | — | 140°F (60.0°C) |
| Distillation — 10% | 170.1°F (76.7°C) | — | 163.4°F (73.0°C) |
| Distillation — 50% | 171.3°F (77.4°C) | — | 170.6°F (77.0°C) |
| Distillation — 90% | 171.7°F (77.6°C) | — | 172°F (77.8°C) |
| Distillation — FBP | 178.2°F (81.2°C) | — | 174.7°F (79.3°C) |
| H:C ratio | 3 | — | 2.85 |
| O:C ratio | 0.5 | — | 0.4 |
| Stoichiometric A/F ratio | 8.98 | — | 9.81 |
Typical values as published by VP Racing Fuels.
You're comparing the maximum of three blends. Remove one to add another.