westcoastoz Posted March 9, 2012 Report Share Posted March 9, 2012 I saw this article recently regarding Total's 91UL now available in the UK. We have not seen anything like this as yet 'downunder' but hopefully it is not too far away. Is it available in the USA? Dave Link to comment Share on other sites More sharing options...
N751JM Posted March 9, 2012 Report Share Posted March 9, 2012 Just this week Sonoma Jet Center in Santa Rosa, CA started offering 91 octane, lead-free, ethanol-free, fuel on the field (KSTS). You can reach them at 707-523-2800. Link to comment Share on other sites More sharing options...
Runtoeat Posted March 10, 2012 Report Share Posted March 10, 2012 Although I would really like to have alcohol free fuel, I'm happy using 93 octane 10% ethanol mogas for about $3.75/gal. Never have had any concerns or problems with this fuel after using it for 3 years in summer and winter weather. I would probably not use the 91 octane low lead no alcohol aviation fuel even if it were available to me due to the cost increase over mogas. Link to comment Share on other sites More sharing options...
chanik Posted March 12, 2012 Report Share Posted March 12, 2012 http://libcloud.s3.amazonaws.com/93/f1/5/1155/Friends_of_the_Earth_v_EPA_leaded_avgas_final_stamped_complaint_3_7_12.pdf new lawsuit against EPA for failure to regulate out 100LL This lead issue is giving GA a bit if a black eye it doesn't need. Hopefully, it will get resolved soon. I'm pretty happy with 91 premium for about 95% of my flying. Link to comment Share on other sites More sharing options...
josjonkers Posted March 12, 2012 Report Share Posted March 12, 2012 http://libcloud.s3.a...aint_3_7_12.pdf new lawsuit against EPA for failure to regulate out 100LL This lead issue is giving GA a bit if a black eye it doesn't need. Hopefully, it will get resolved soon. I'm pretty happy with 91 premium for about 95% of my flying. However the blackest of black eyes goes to the EPA for ignoring this issue. Link to comment Share on other sites More sharing options...
Jim Meade Posted March 13, 2012 Report Share Posted March 13, 2012 EPA is charged with carrying out a number of duties. They are given certain resources to permit them to accomplish their mission. It mat be that economic, political and health priorities are such that a little lead is not very important compared to other issues. We don't know. As far as I'm concerned, they can ignore this issue forever. Link to comment Share on other sites More sharing options...
Gmoore7 Posted March 16, 2012 Report Share Posted March 16, 2012 Question for you? I just learned today that my only gas station in the Corpus Christi,Texas area is no longer able to get 93 octane Ethanol free fuel from their supplier. They are able to get 87 and 89 octane. Can I drop down to the 89 octane that is ethanol free? Link to comment Share on other sites More sharing options...
Roger Lee Posted March 16, 2012 Report Share Posted March 16, 2012 No, 91 is the minimum. With a CT ethanol is not an issue what so ever. Buy the 91 and don't worry. If you try a lower octane and take off you may get detonation and if that happens you can not land fast enough to prevent damage. you can't use low octane in this 11:1 compression engine. Link to comment Share on other sites More sharing options...
Mike Koerner Posted March 16, 2012 Report Share Posted March 16, 2012 I wouldn't do that. Our high-compression engines need high octane fuel to avoid knock (premature detonation) which can do a lot more damage to the engine than alcohol or lead. Knock is not a big deal for cars anymore because electronic ignition systems detect knock and adjust the timing according. So even if your car manufacturer recommends premium fuel, it will do no harm to use the cheaper grades instead, though you lose some performance (power and efficiency). Interestingly, the new fuel-injected Rotax has anti-knock sensors built in, though the system has not yet been activated. At some point in the future these engines may be able to run on lower octane fuel despite having the same high compression ratio that our engines have. Mike Koerner Link to comment Share on other sites More sharing options...
Gmoore7 Posted March 16, 2012 Report Share Posted March 16, 2012 Roger and Mike I will stay above 91. I can still get 93, but just isn't ethanol free. Thanks guys, I do appreciate you. Link to comment Share on other sites More sharing options...
N89WD Posted March 16, 2012 Report Share Posted March 16, 2012 No, 91 is the minimum. With a CT ethanol is not an issue what so ever. Buy the 91 and don't worry. If you try a lower octane and take off you may get detonation and if that happens you can not land fast enough to prevent damage. you can't use low octane in this 11:1 compression engine. Roger, what about the 93 with 10% ethanol? Is it better/worse? I can get either one now. My supplier finally ran out on 91 without ethanol. I kkep 150 gallons in the hangar, so when thats gone, its gone. Link to comment Share on other sites More sharing options...
Roger Lee Posted March 17, 2012 Report Share Posted March 17, 2012 Hi Mike, 91 octane or higher with or without ethanol is just fine. Use whatever you have at the pump. If you have 93 it's fine. Link to comment Share on other sites More sharing options...
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