Cody Furlow
  • Odonnell, TX
  • United States
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Cody Furlow's Discussions

89 Octane pure gas vs 91 with Ethanol

Started this discussion. Last reply by Dave Blackburn Aug 4, 2025. 9 Replies

I was going to see if anyone has run 89 octane pure gas in a UL 350 IS instead of 91 octane with ethanol? I cannot find 91 octane pure gas but can get 89 octane. I am not a fan of running fuel with…Continue

 

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STOL CH 750

STOL CH 750
Dec 31, 2025
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STOL CH 750

STOL CH 750
Dec 22, 2025
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Cody Furlow posted a discussion

89 Octane pure gas vs 91 with Ethanol

I was going to see if anyone has run 89 octane pure gas in a UL 350 IS instead of 91 octane with ethanol? I cannot find 91 octane pure gas but can get 89 octane. I am not a fan of running fuel with ethanol. If 89 octane is not going to work would octane booster help? See More
Jun 24, 2025
9 Comments

Profile Information

Aircraft Model
STOL CH 750
Project Status
Other
Building From
Purchased finished aircraft
Engine installed (or plan to install)
UL Power
Building Experience
Have worked on airplanes before
Flying Experience
Private Pilot
Building and Flying Info / Your Profession / Other Background Info
I am i the market for a ch750
Home Airport (ie. KMYJ)
KLUV

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At 5:49pm on January 7, 2025, Erica said…

I need to have a word privately,Could you please get back to me on ( mrs.ericaw1@gmail.com)Thanks.

 
 
 

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