Race cars on track

260 GTX

Sunoco® 260 GTX™ is an unleaded racing fuel that contains no oxygenates and no metallic additives. 260 GTX is a good fuel for many applications that need more detonation protection than typical street gas provides, yet cannot use a leaded fuel. It has been shown to produce repeatable power levels in small block V8 engines to 12:1 compression ratio, and will tolerate more compression in engines with smaller or more efficient combustion chambers. Turbocharged and supercharged race cars that require an unleaded fuel are good candidates for Sunoco 260 GTX.

260 GTX is not a street legal fuel and is for off-road and racing use only. However, it will not harm sensors such as oxygen sensors used in fuel injection systems. It is also an excellent choice where oxygenates such as alcohols and ethers are limited or banned by the race engine manufacturer or race sanctioning organization.

Sunoco 260 GTX contains additives to enhance shelf life and engine cleanliness. However, as with any gasoline, it should be stored in opaque, tightly sealed containers where the temperature is stable. Handled under such conditions, the shelf life of 260 GTX is in excess of 2 years.


Legal in California only for racing vehicles in sanctioned racing events.


For off-road and racing applications only.

Technical Details

Color Green
Octane (R+M)/2 98
Research Octane 103
Motor Octane 93
Specific Gravity 0.762
Weight (lbs/gallon) 6.3
Reid Vapor Pressure 4.7
10% Evaporation 182
50% Evaporation 220
90% Evaporation 227
Stoichiometric Air/Fuel Ratio 14.6
Oxygen (Weight%) 0
Ethanol (Volume%) 0
HC Ratio 1.76
Lower Heating Value (Btu/Pound) 18240
Lower Heating Value (Btu/Gallon) 115800
Leaded No


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

Sanctioning Bodies

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