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Glen Guenther - May 18,2006
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I've been a prospective Searey buyer for about five years now and I still haven't committed. My latest excuse, besides money, involves the availability of fuel. I want to be able to take long-distance cross-country trips, not just Sunday jaunts to the next lake over. How difficult is it to get fuel far from home? I understand the Rotax (914, of course) needs 91 octane. How am I going to get this at any random airport or marina? Can I run 100LL? What about gasoline mixed with ethanol? Has anybody here had to deal with these issues? I'm in the western U.S., if it makes any difference. Thanks for your insights.<br /><br />Glen G.
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Jeff Holbrook - May 18,2006
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I know a few guys that run 100LL in their 914's exclusively with no problems.
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Kenneth Leonard - May 19,2006
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Glen - If you can afford the 914, you can afford the gas. If money is really a concern, buy the 912 or 912S. They get better fuel mileage and the $10,000 savings will buy you several years worth of gas. At $4 per gallon, that's 550 hours of flying which is more than most SeaRey folks put on thier planes in a lifetime. Oh, and they are cheaper to maintain also, so make that 600 hours of flying to break even with the 914 cost.
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Don Maxwell - May 19,2006
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Glen, as Frank suggested, Dan Nickens is THE SeaRey fuel authority. He'll probably tell you more or less what I will: I use 93 octane mogas when I can get it easily, but have flown several trips of more than 2500 nm on 100LL with no problems at all.
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Dan Nickens - May 19,2006
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'...THE SeaRey fuel authority...?' And to think my mother never thought I'd amount to anything. I thought I was just a fuelish consumer. Since Don offered the option of saying less than he did, I'll just say, 'Yeah! What he said!'
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Terry Mac Neill - May 19,2006
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To those that are concerned:<br /><br />My favorite engine manufacturer ..... Hirth.... is currently working with a company called Orbital ( direct air injection ) and are using the heavy fuels JP-5 and JP-8 , kerosine and jet fuel , I think, and are getting good results.<br /><br />I believe the military is heavily involved because they want one fuel for everything, jets, tanks, trucks , generators you name it.<br /><br />If anybody finds error in this info, tell me.<br /><br />Try this site.................. <a href="http://www.hirth-uavengines.de/">www.hirth-uavengines.de/</a><br /><br /><br />
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Kenneth Leonard - May 19,2006
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Terry - Yes and no. I'm a USAF aircraft maintenace puke so I know a little about this issue. The various fuels have advantages in different situations. Most of our turbine engines (jet or tank) and our diesel engines CAN burn any of these in a pinch, but it's not optimal. I.E. Fighters want fuel that doesn't leave a smoke trail yet has very high energy density because they can't carry a large volume. Those tend to be more expensive fuels. Some fuels are not readily available in various locations, etc, etc...<br />By the way, I just found out that the USAF is the single biggest user of fuel on the planet!
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Mark Alan MacKinnon - May 25,2006
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Ahem.<br /><br />'What about gasoline mixed with ethanol?'<br /><br />No one's touched this question yet.<br /><br />Also, he did not mention any concern about the COST of fuel, just it's availability.
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Don Maxwell - May 25,2006
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Mark, there are some discussions of ethanol+gasoline over on STS. In brief, Rotax's North American dealer, Kodiak Research, says that E10 (10% ethanol) is okay in Rotax four-stroke engines (but that you need to check the tank carefully and regularly). They also say that some in Brazil have apparently had no problems with E26, although Rotax itself doesn't recommend it. In areas where mogas is E85, Kodiak says that Rotaxes use 100LL.
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Glen Guenther - May 25,2006
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Thanks, yes, I'm more concerned about what's available than the cost. I'm based at 5000 feet and want to be able to get into (and out of) lakes higher than that, so I feel the 914 is the right choice. I'm not a boater so I don't know what one can get regularly at a marina. I did see 100LL for sale at a corner gas station in Lake Havasu, apparently for high performance boats. I can't imagine that's too common. Thanks for your comments.<br /><br />Glen G.
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P.C. Russell - May 27,2006
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Glen;<br /> I've heard that ethanol doesn't work good at altitude. All around Denver they sell ethonol. Thats fairly high altitude. I personally think auto gas would be the way to go.<br /> Papa Charlie
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Fred Glasbergen - May 25,2006
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My expierence is that the the four strokes can tolerate the ethanol like the 100LL but definately stay away from ethanol for the two strokes.
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