Fuel Finder

260 GT Plus

Sunoco 260 GT Plus is a high octane, highly oxygenated unleaded race fuel. It is our highest octane unleaded race fuel which makes it a popular choice for racers looking for high octane in an unleaded product.

Because 260 GT Plus contains more oxygen than is allowed in pump gas, it is for off-road and racing use only. However, it will not harm oxygen sensors. Due to its high oxygen content, an increase in fuel flow is required to utilize the full potential of 260 GT Plus compared to conventional non-oxygenated fuels.

Sunoco 260 GT Plus contains additives to enhance shelf life and promote engine cleanliness. As with any gasoline, it should be stored in opaque, tightly sealed containers and kept where temperatures are stable. Properly stored, the shelf life of 260 GT Plus is in excess of 1 year.

Note: exposure to sun light (ultraviolet light) can degrade the octane of this fuel and must be avoided.

Technical Details

  • Color
    Light Blue
  • Octane (R+M)/2
    104
  • Research Octane
    110
  • Motor Octane
    98
  • Specific Gravity
    0.761
  • Weight (lbs/gallon)
    6.3
  • Reid Vapor Pressure (PSI)
    6.1
  • 10% Evaporation (°F)
    148
  • 50% Evaporation (°F)
    212
  • 90% Evaporation (°F)
    233
  • Stoichiometric Air/Fuel Ratio
    13.7
  • Oxygen (weight%)
    4.7
  • Ethanol (volume%)
    13
  • H/C Ratio
    1.867
  • O/C Ratio
    0.043
  • Lower Heating Value (Btu/Gallon)
    110300
  • Lower Heating Value (Btu/Pound)
    17400
  • Dielectric Constant
    19
  • Leaded
    No

Applications:

  • Road Course
  • Asphalt Oval
  • Dirt Oval
  • Off-road
  • Rally
  • Drag
  • Motorcycle Road Course
  • Off-road Motorcycle and ATV
  • Karts
  • Boats and Personal Watercraft
  • Miscellaneous Nitrous, Superchargers, Turbochargers

Sanctioning Bodies

  • RUSH Racing Series

Tech Corner

Mixing Fuels and Calculating Octane

We often get these two questions: Can I mix fuels? What is the octane when...

Specific Gravity – What Is It And Why Does It Matter?

Specific Gravity Definition: specific gravity (noun) - the ratio of the...

Fuel Metering Basics for Oxygenated Fuels

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