VP Racing MR12 Fuel

We design MR12 fuel to make maximum power in four stroke dirt or street bikes with stock or mild modifications. This is VP’s best fuel yet for 4-stroke applications that can tolerate lower octane values. MR12 has met fuel rules for AMA Pro/Am, CCS, WERA, NMA, WORCS, SCORE and Best in the Desert, as well as club level racing and more. As regulations are ever changing, we recommend checking with tech to be certain.

Specification Sheet: MR12
(Typical Values)
Color = Green
Specific Gravity = 0.7340
MON = 85
RON = 101
(R+M)/2 = 93
Oxygen Content = 8.73%
Oxidation Stability (min.) = 1440+
Leaded: Yes
RVP = 12.17psi
Distillation
IBP = 93.7°F
10% = 103.8°F
50% = 117.5°F
90% = 271.6°F
FBP = 330.6°F
H:C ratio = 1.84
O:C ratio = 0.08
Stoichiometric A/F Ratio = 12.87