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 MRX02 | VP X85 |
|---|---|---|---|
| RON | 102 | 108 | 108 |
| MON | 86.3 | 95 | 95.2 |
| (R+M)/2 | 94.3 | 101.5 | 101.6 |
| Specific gravity | 0.7818 (781 kg/m³ at 15 °C) | 0.7350 (734 kg/m³ at 15 °C) | 0.7800 (779 kg/m³ at 15 °C) |
| RVP | 7.28 psi (50.2 kPa) | 9.96 psi (68.7 kPa) | 4.22 psi (29.1 kPa) |
| Oxygen content | 3.68% | 6.99% | 30.03% |
| Fuel type | Unleaded | Leaded | Ethanol |
| Colour | Colorless | Blue | Colorless |
| Leaded | No | Yes | No |
| Oxidation stability | >1440 min | >1440 min | >1440 min |
| Distillation — IBP | 113.2°F (45.1°C) | 91.9°F (33.3°C) | 140°F (60.0°C) |
| Distillation — 10% | 129°F (53.9°C) | 111.7°F (44.3°C) | 163.4°F (73.0°C) |
| Distillation — 50% | 200.3°F (93.5°C) | 140.4°F (60.2°C) | 170.6°F (77.0°C) |
| Distillation — 90% | 242.4°F (116.9°C) | 308.1°F (153.4°C) | 172°F (77.8°C) |
| Distillation — FBP | 281.7°F (138.7°C) | 326.1°F (163.4°C) | 174.7°F (79.3°C) |
| H:C ratio | 1.74 | 1.91 | 2.85 |
| O:C ratio | 0.03 | 0.07 | 0.4 |
| Stoichiometric A/F ratio | 13.69 | 13.3 | 9.81 |
Typical values as published by VP Racing Fuels.
You're comparing the maximum of three blends. Remove one to add another.