Avgas 100LL aviation gasoline
The primary aviation gasoline for piston-engine aircraft worldwide. Dyed blue and formulated to ASTM D910 / DEF STAN 91-090 octane and vapor-pressure limits for reliable general aviation performance.
Avgas 100LL
What is Avgas 100LL fuel?
Avgas 100LL (100 Low Lead) is the primary aviation gasoline for piston-engine aircraft worldwide, dyed blue and specified to ASTM D910 / DEF STAN 91-090. Octane rating is 100/130 with tightly controlled vapour pressure and freeze point.
It is not Jet A-1: turbine aircraft burn kerosene; piston trainers, GA and many helicopters on piston engines uplift Avgas.
Maximum lead content is typically 0.56 g/L for 100LL. Always verify batch CoA for your engine approval.
Avgas 100LL vs Jet A-1
| Property | Avgas 100LL | Jet A-1 |
|---|---|---|
| Engine type | Piston / spark-ignition | Turbine / jet |
| Spec | ASTM D910 | DEF STAN 91-091 / ASTM D1655 |
| Colour | Blue dye | Straw / undyed |
| Lead | Low lead (TEL) | Unleaded kerosene |
Turbine fuel: Jet A-1 fuel.
Key technical properties
ASTM D910 and DEF STAN 91-090, the global piston-engine aviation gasoline standard.
| Property | Avgas 100LL limit |
|---|---|
| Specification | ASTM D910 / DEF STAN 91-090 |
| Octane number (motor/lean) | 100 min |
| Octane number (research/rich) | 130 min |
| Lead content (max) | 0.56 g/L |
| Color | Blue (dyed) |
| Flash point (min) | −40°C (−40°F) |
| Freezing point (max) | −58°C (−72°F) |
| Reid vapor pressure | 38.0-49.0 kPa |
| Distillation end point (max) | 170°C |
| Aromatic content (max) | 25% vol |
Where it fits
Reliable octane rating for training fleets running high daily cycles.
Consistent quality for cross-country and charter piston operations.
Fast replenishment for fixed-base operators and general aviation ramps.
Meets piston GA fleet requirements across regions and manufacturers.
How to buy
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Share the requirement
Airport, volume and delivery window so we can quote fast.
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Pricing & terms
Confirm price, Incoterms and allocation for your window.
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Lock the slot
Reserve uplift slots and coordinate logistics.
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Into-plane with CoA
Fuel delivered with certificate of analysis and full documentation.
Specs first? Download the TDS above. Ready to buy? Sales responds within 2 hours.
Contact salesGlobal sourcing network
Long-term procurement with distributor routes, refinery-backed planning and compliant documentation, from qualified producers and terminals to reduce lead-time risk.
- Continuity: Contracted volumes with rolling delivery windows.
- Flexibility: Multi-region options when one corridor is disrupted.
- Coverage: Partners for priority uplift and transfer.
- Compliance: Spec, quality and chain-of-custody docs.
Frequently asked questions
What does 100LL mean?
100 refers to the octane rating; LL means Low Lead, 0.56 g/L max versus older higher-lead grades.
Is Avgas 100LL the same in every country?
Yes, it is dual-certified to ASTM D910 (US) and DEF STAN 91-090 (UK), giving consistent specs worldwide.
Why is Avgas 100LL dyed blue?
Blue dye lets ground crews visually identify the grade and avoid misfuelling piston aircraft with jet fuel.
What is Avgas 100LL used for?
Avgas 100LL fuels piston-engine general aviation, trainers and many piston helicopters. It is not for turbine/jet aircraft.
Avgas vs Jet A-1?
Avgas is gasoline for piston engines; Jet A-1 is kerosene for turbines. Specs, colour, lead content and handling all differ.
Where can I buy Avgas 100LL?
Suat Fuels supplies Avgas 100LL for qualified aviation operators, request a quote with volume, airport/FBO and delivery window.
Request Avgas 100LL pricing
ASTM D910 / DEF STAN 91-090 certified supply for general aviation fleets.
Contact sales