Avgas
High-Quality Avgas Fuel for Small Piston-Engine Aircraft
Avgas is an aviation fuel used in small piston engine powered aircraft within the aviation community. Typically, today these are smaller aircraft, such as those at flight schools, and flying clubs and used for applications such as flight training and dispersion of insecticides. There are two main grades of Avgas, Avgas 100 and Avgas 100LL. The major difference between them is the amount of tetraethyl lead, with Avgas 100 having a higher lead content than Avgas 100LL.
Avgas 100
Avgas 100 (dyed green) is the principle high-octane fuel for turbocharged aircraft piston engines, powering private, commercial, and military training aircraft. Sunoco LP Avgas 100 meets ASTM D 910 and UK DEF STAN 91-090 industry standards
The main characteristics are:
- Fuel for smaller aircraft.
- Green in color.
- Density within the range of 6 and 7 pounds per gallon (0.72 to 0.84 kilograms per liter) at a standard temperature of 59 degrees Fahrenheit (15 degrees Celsius).
- Flammable at temperatures between -49°F (-45°C) and 100°F (38°C) in the presence of flames or sparks.
- Freezing point typically around -60°F (-51°C).
Avgas 100LL
Avgas 100LL (dyed blue) is the low-lead version of Avgas 100. Avgas 100LL is the principle high-octane fuel for turbocharged aircraft piston engines, powering private, commercial, and military training aircraft. It can also be used in smaller, normally aspirated engines which were originally certified on Avgas 80 and where Avgas 100LL has been certified as an alternative fuel. Sunoco LP Avgas 110 meets ASTM D 910 and UK DEF STAN 91-090 industry standards.
The main characteristics are:
- Fuel for turbocharged aircraft piston engines.
- Blue in color.
- Density within the range of 6 and 7 pounds per gallon (0.72 to 0.84 kilograms per liter) at a standard temperature of 59 degrees Fahrenheit (15 degrees Celsius).
- Flammable at temperatures between -49°F (-45°C) and 100°F (38°C) in the presence of flames or sparks.
- Freezing point typically around -70°F (-57°C).
Get started with aviation fuel.
Contact a member of Sunoco LP Aviation who can assist you with your specific enquiry.
Avgas FAQ
How much does 1 gallon of Avgas weigh?
The density of Avgas at 15°C is 6.01 lbs./U.S. gallon.
Where can I buy Avgas?
Sunoco LP supplies avgas and other aviation fuels. Contact a member of Sunoco LP Aviation who can assist you with your specific enquiry.
Can I still buy Avgas 80?
Avgas 80 is no longer in production. Avgas 110LL is the recommended fuel to use instead if the aircraft has been certified on that fuel.
Does Sunoco LP Supply Avgas UL91 and Avgas UL94?
Avgas UL91 and Avgas UL94 are lead-free variants of avgas. Both are designed like Avgas 100LL but have a reduced lead content which results in a lower octane performance. Sunoco LP does not currently market either.
Can motor gasoline be used instead of avgas?
It is illegal to use motor gasoline (mogas) instead of avgas for most aircraft pilots. The properties critical to aviation use (for example, combustion quality, resistance to oxidation) are not controlled to the same degree in automotive motor gasoline manufacture and handling. Sunoco LP does not recommend or allow the use of motor gasoline as aircraft fuel.
Which is better Avgas or Jet Fuel?
Jet Fuels such as Jet A-1 and Jet A are easier to source than Avgas as they come off the refining process first. The simple refining process makes them also cheaper than Avgas. Avgas is used to power piston-engine aircraft and propeller aircraft whereas jet fuel is used for jet engines.
