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 X85 | VP C16 | VP R5.1 |
|---|---|---|---|
| RON | 108 | >120 | 102 |
| MON | 95.2 | 116 | 86.3 |
| (R+M)/2 | 101.6 | >118 | 94.3 |
| Specific gravity | 0.7800 (779 kg/m³ at 15 °C) | 0.7350 (734 kg/m³ at 15 °C) | 0.7818 (781 kg/m³ at 15 °C) |
| RVP | 4.22 psi (29.1 kPa) | 2.18 psi (15.0 kPa) | 7.28 psi (50.2 kPa) |
| Oxygen content | 30.03% | 0% | 3.68% |
| Fuel type | Ethanol | Leaded | Unleaded |
| Colour | Colorless | Blue | Colorless |
| Leaded | No | Yes | No |
| Oxidation stability | >1440 min | >1440 min | >1440 min |
| Distillation — IBP | 140°F (60.0°C) | 193.1°F (89.5°C) | 113.2°F (45.1°C) |
| Distillation — 10% | 163.4°F (73.0°C) | 205.9°F (96.6°C) | 129°F (53.9°C) |
| Distillation — 50% | 170.6°F (77.0°C) | 210.2°F (99.0°C) | 200.3°F (93.5°C) |
| Distillation — 90% | 172°F (77.8°C) | 226.4°F (108.0°C) | 242.4°F (116.9°C) |
| Distillation — FBP | 174.7°F (79.3°C) | 351.5°F (177.5°C) | 281.7°F (138.7°C) |
| H:C ratio | 2.85 | 1.97 | 1.74 |
| O:C ratio | 0.4 | 0 | 0.03 |
| Stoichiometric A/F ratio | 9.81 | 14.7 | 13.69 |
Typical values as published by VP Racing Fuels.
You're comparing the maximum of three blends. Remove one to add another.