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 X85R | VP C50+ REG |
|---|---|---|---|
| RON | >120 | 106 | 102 |
| MON | 120 | 90.7 | 87.5 |
| (R+M)/2 | >120 | 98.3 | 94.8 |
| Specific gravity | 0.7850 (784 kg/m³ at 15 °C) | 0.8000 (799 kg/m³ at 15 °C) | 0.7160 (715 kg/m³ at 15 °C) |
| RVP | 4.09 psi (28.2 kPa) | 3.2 psi (22.1 kPa) | 10.33 psi (71.2 kPa) |
| Oxygen content | 29.95% | 32.31% | 6.69% |
| Fuel type | Ethanol | Ethanol | Unleaded |
| Colour | Light Purple | Colorless | — |
| Leaded | Yes | — | No |
| Oxidation stability | >1440 min | — | — |
| Distillation — IBP | 145.6°F (63.1°C) | — | — |
| Distillation — 10% | 164.1°F (73.4°C) | — | — |
| Distillation — 50% | 170.1°F (76.7°C) | — | — |
| Distillation — 90% | 171.7°F (77.6°C) | — | — |
| Distillation — FBP | 185.7°F (85.4°C) | — | — |
| H:C ratio | 2.81 | — | — |
| O:C ratio | 0.4 | — | — |
| Stoichiometric A/F ratio | 9.78 | — | — |
Typical values as published by VP Racing Fuels.
You're comparing the maximum of three blends. Remove one to add another.