Fuel Finder

RMR

Sunoco® RMR™ is a 94 octane unleaded racing fuel that contains 2.7 weight percent oxygen. While it has many potential applications, RMR has been established as a popular choice in Europe where it has been race proven in high revving two-stroke and four-stroke engines. RMR works equally well in naturally aspirated and turbocharged applications.

Sunoco RMR is the control fuel of European racing organizations such as Mini Challenge, Intersteps, and Production Touring Trophy Cup. It is the spec fuel in all MSA sanctioned events.

Sunoco RMR does not have to be drained from fuel systems after each use. RMR is not a street legal fuel and is for off-road and racing use only. It will not harm sensors such as oxygen sensors used in fuel injection systems and dynamometer data acquisition systems. RMR contains additives to enhance shelf life and engine cleanliness. As with any gasoline, it should be stored in dark, tightly sealed containers where the temperature is stable.

Technical Details

  • Color
    Not Dyed
  • Octane (R+M)/2
    94
  • Research Octane
    99
  • Motor Octane
    89
  • Specific Gravity
    0.755
  • Weight (lbs/gallon)
    6.3
  • Reid Vapor Pressure (PSI)
    8
  • Initial Boiling Point (°F)
    102
  • 10% Evaporation (°F)
    132
  • 50% Evaporation (°F)
    218
  • 90% Evaporation (°F)
    234
  • Final Boiling Point (°F)
    270
  • Stoichiometric Air/Fuel Ratio
    14.2
  • Oxygen (weight%)
    2.7
  • Ethanol (volume%)
    3.5
  • Methanol (volume%)
    2.8
  • Dielectric Constant
    9
  • Leaded
    No

Applications:

  • Rally
  • Motorcycle Road Course
  • Off-road Motorcycle and ATV
  • Snowmobiles

Sanctioning Bodies

  • Radical European Masters
  • Mini Challenge
  • Florida Motorcycle Road Racing Associtation

Tech Corner

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