Fuel Finder

SR18

Sunoco SR18 is our ultimate high octane, fast burning racing fuel. If you have a high compression, high RPM race engine, 118 octane Sunoco SR18 is your fuel of choice.

SR18 is an excellent choice for drag racing and truck pulling, especially large displacement applications. For oval course and road racing applications, SR18 will tolerate the high cylinder pressures in racing classes where there are no compression ratio limitations.

Sunoco SR18 is for off-road and racing use only. It contains additives to enhance stability and increase storage life. As with any gasoline, SR18 should be stored in opaque, tightly sealed containers where temperatures are stable. Handled under such conditions, the shelf life of Sunoco SR18 is 2 years or more.

Technical Details

  • Color
    Yellow
  • Octane (R+M)/2
    118
  • Research Octane
    120
  • Motor Octane
    116
  • Specific Gravity
    0.704
  • Weight (lbs/gallon)
    5.9
  • Reid Vapor Pressure (PSI)
    6
  • Initial Boiling Point (°F)
    99
  • 10% Evaporation (°F)
    166
  • 50% Evaporation (°F)
    209
  • 90% Evaporation (°F)
    213
  • Final Boiling Point (°F)
    223
  • Stoichiometric Air/Fuel Ratio
    15.1
  • Oxygen (weight%)
    0
  • Ethanol (volume%)
    0
  • Methanol (volume%)
    0
  • H/C Ratio
    2.2
  • Lower Heating Value (Btu/Gallon)
    111000
  • Lower Heating Value (Btu/Pound)
    18950
  • Dielectric Constant
    -1
  • Leaded
    Yes

Applications:

  • Road Course
  • Asphalt Oval
  • Dirt Oval
  • Off-road
  • Drag
  • Truck and Tractor Pulling
  • Karts
  • Boats and Personal Watercraft
  • Snowmobiles
  • Miscellaneous Nitrous, Superchargers, Turbochargers

Sanctioning Bodies

  • NHRA

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