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 R5.1 | VP X98 |
|---|---|---|
| RON | 102 | 103 |
| MON | 86.3 | 120 |
| (R+M)/2 | 94.3 | >111.5 |
| Specific gravity | 0.7818 (781 kg/m³ at 15 °C) | 0.7940 (793 kg/m³ at 15 °C) |
| RVP | 7.28 psi (50.2 kPa) | 3.04 psi (21.0 kPa) |
| Oxygen content | 3.68% | 34.73% |
| Fuel type | Unleaded | Ethanol |
| Colour | Colorless | Colorless |
| Leaded | No | No |
| Oxidation stability | >1440 min | >1440 min |
| Distillation — IBP | 113.2°F (45.1°C) | 151°F (66.1°C) |
| Distillation — 10% | 129°F (53.9°C) | 170.1°F (76.7°C) |
| Distillation — 50% | 200.3°F (93.5°C) | 171.3°F (77.4°C) |
| Distillation — 90% | 242.4°F (116.9°C) | 171.7°F (77.6°C) |
| Distillation — FBP | 281.7°F (138.7°C) | 178.2°F (81.2°C) |
| H:C ratio | 1.74 | 3 |
| O:C ratio | 0.03 | 0.5 |
| Stoichiometric A/F ratio | 13.69 | 8.98 |
Typical values as published by VP Racing Fuels.