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AVGAS WA UL 91

warter aviation presents

AVGAS fuel ul 91

Fuel created for your private plane.

Ecology

This lead free fuel is made to power piston aviation engines.

Lack of lead makes it the green and eco-friendly alternative to both motor gasoline as well as AVGAS 100LL (where applicable). Thanks to enriching additives, AVGAS 91UL has perfect performance qualities.

Distribution

We supply fuel all over the world.

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We present UL 91

Best fuel quality. Discover its capabilities!

FUEL PRICING send inquiry

Aviation gasoline UL 91(unleaded) is a mixture of hydrocarbons prepared by the processing of crude oil. It contains anti-oxidant and anti-static additives. It contains anti-knock, anti-oxidant, dye and anti-static additives, which makes it a perfect alternative to motor gasoline (MOGAS). Due to its lower price, MOGAS is often being use as a replacement of 91UL/100LL which creates a huge safety risk, due to a presence of alcohol in motor gasoline. Motor gasoline continues methanol which is a very volatile compound and can create vapor lock, more likely carb icing. It also has a corrosive effect on composite elements of the engine, fuel tank and fuel lines and should not be used in aviation!

Application

Aviation gasoline UL 91 is used to power piston-engine aircraft. It can be also used with ultralight aircraft operating on a range of UL91 approved engine (such as Rotax). Always check your aircraft/engine manual is your powerplant approved for UL91 and to see the transition instructions

Storage

Gasoline should be stored in containers that protect the fuel from air, moisture and mechanical impurities away from direct sunlight and heating (underground and above ground tanks with limited air exchange). These restrictions limit both the loss associated with evaporation and loss of the lightest elements, which may change the two key parameters of gasoline: vapour pressure and fractional composition. We work closely with our customers to ensure storage solutions are both suitable and safe.

Guaranteed technical properties

Aviation gasoline UL 91 meets the requirements of ASTM D 7547 and DEF STAN 91-90.

Warranty period

Properly stored and secured aviation fuel holds its technical properties within 24-month period.


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PROPERTIES

Colour   Colourless natural
Knocking Rating
Motor Octane Number, MON Min 91
Research Octane Number, RON Min 96
Distillation
Initial boiling point °C Report
10%  vol. at °C Max 75
40%  vol. at °C Min 75
50%  vol. at °C Max 105
90%  vol. at °C Max 135
Final boiling point °C Max 170
Productivity %(v/v) Min 97
Residue %(v/v) Max 1,5
Loss %(v/v) Max 1,5
Sum of 10% +  50% evaporated
Temperatures °C Min 135
Total sulphur % m/m Max 0,05
Density at 15 °C kg/m3 Report
Specific energy MJ/kg Min 43,5
Freezing point °C Max (-58)
Copper strip corrosion
2h at =100 °C corrosion level Max 1
Water reaction
Volume change ml
Electrical conductivity
at 20°C pS/m 50-450
Reid vapour pressure at 37,8°C kPa 38-49
Oxidation stability
16h at 100°C
Potential gum content mg/100ml Max 6