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GAMI G100UL RVP

tgmillso

Well Known Member
Sponsor
Hi All. Does anyone know the Reid Vapor Pressure of G100UL? I have been unable to find anything in any of their flight manual supplements or elsewhere.

Thanks.

Tom
RV-7
 
FAQ #3 https://gami.com/g100ul/faq.php

Q3. Are there any problems with vapor pressure or something similar?
Vapor pressure problems arise from vapor pressure that is too high. Car gas has much higher vapor pressure than avgas. High vapor pressure causes vapor lock. The G100UL™ fuel tends to run at the lower limit of the existing ASTM D910 vapor pressure specification. However, we can set the vapor pressure anywhere it needs to be by minor adjustments to some of the components of the fuel, without otherwise affecting its other important characteristics like detonation.

We are currently doing winter testing of G100UL™ fuel in a Cessna 150. We are not seeing any significant difference between G100UL™ fuel and 100LL in starting characteristics. They both get harder to start in cold weather below freezing and they both get easier to start in warmer weather
 
Thanks guys. I would have thought they would have published this in their documentation somewhere and not be something that you'd find in the FAQ's, but hey, at least there's a reference.

Cheers,

Tom.
 
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