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 X85L | VP MS109 REG |
|---|---|---|
| RON | >120 | 111 |
| MON | 120 | 100 |
| (R+M)/2 | >120 | 105.5 |
| Specific gravity | 0.7850 (784 kg/m³ at 15 °C) | 0.7200 (719 kg/m³ at 15 °C) |
| RVP | 4.09 psi (28.2 kPa) | 6.03 psi (41.6 kPa) |
| Oxygen content | 29.95% | 9.32% |
| Fuel type | Ethanol | Unleaded |
| Colour | Light Purple | Colorless |
| Leaded | Yes | No |
| Oxidation stability | >1440 min | >1440 min |
| Distillation — IBP | 145.6°F (63.1°C) | 97.7°F (36.5°C) |
| Distillation — 10% | 164.1°F (73.4°C) | 138.6°F (59.2°C) |
| Distillation — 50% | 170.1°F (76.7°C) | 159.6°F (70.9°C) |
| Distillation — 90% | 171.7°F (77.6°C) | 216.1°F (102.3°C) |
| Distillation — FBP | 185.7°F (85.4°C) | 226.6°F (108.1°C) |
| H:C ratio | 2.81 | 2.32 |
| O:C ratio | 0.4 | 0.09 |
| Stoichiometric A/F ratio | 9.78 | 13.36 |
Typical values as published by VP Racing Fuels.