Fuel Finder | Fuel Selector

FR

Sunoco® FR™ is an unleaded oxygenated race fuel that performs well in turbocharged engines as well as air-restricted naturally aspirated engines that can benefit from an oxygenated racing fuel. It complies with certain race fuel regulations limiting oxygen to 4 volume percent.

Sunoco FR contains additives to enhance storage life. Sunoco FR will not harm oxygen sensors and can be used in any racing application requiring an unleaded fuel. As with any gasoline, FR should be stored in opaque sealed containers where temperatures are stable.

Technical Details

  • Color
    Not Dyed
  • Octane (R+M)/2
    96
  • Research Octane
    102
  • Motor Octane
    90
  • Specific Gravity
    0.743
  • Weight (lbs/gallon)
    6.2
  • Reid Vapor Pressure (PSI)
    9
  • Initial Boiling Point (°F)
    96
  • 10% Evaporation (°F)
    126
  • 50% Evaporation (°F)
    206
  • 90% Evaporation (°F)
    225
  • Final Boiling Point (°F)
    241
  • Stoichiometric Air/Fuel Ratio
    14.1
  • Oxygen (weight%)
    3.7
  • Ethanol (volume%)
    10
  • Methanol (volume%)
    0
  • H/C Ratio
    1.98
  • O/C Ratio
    0.032
  • Lower Heating Value (Btu/Gallon)
    109650
  • Lower Heating Value (Btu/Pound)
    17720
  • Leaded
    No

Applications:

  • Road Course
  • Asphalt Oval
  • Rally
  • Motorcycle Road Course
  • Off-road Motorcycle and ATV
  • Karts
  • Snowmobiles

Sanctioning Bodies

  • F3 Cup

Tech Corner

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Octane is the most talked about property when it comes to gasoline. It’s no...

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Fuel Metering Basics for Oxygenated Fuels

We get a lot of questions about fuel metering changes required for oxygenated...