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madriver42(at)gmail.com
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 Posted: Sun Jan 30, 2011 1:43 pm Post subject: Gas storage vs problems |
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Guys,
What is your take on storage of 91 octane (no alchol) gas in the plane during winter layoffs of one month or so.
At one juncture it was said to just top off with 100LL - I did and have about fifty / fifty mix of 91 octane (no alchol) and 100LL now.
But at the next top off which fuel should I use considering that 100LL isn't the 1st choice - been doing the top off at five gallons at a time to keep the level about 1/2 (10 gal) in the tanks (CH - 701) with about 1hr flights in phase one testing.
What do you recommend for a guy like me that could go up to a month - cold wx related - without flying.
Am I paranoid - my 182 eats 87 octane auto gas without a hickcup after a long winters layoff - but all I can read about the Rotax especially the 912 ULS it is much more critical.
Is the addition of stabilizer a good choice in your mind - I use regular "Stabil" in 91 octane gas for ALL my gas powered tools, duck boat motor and stabil in my golf cart and since invoking that regimen have had - 0, nadda, none - troubles with stale gas, carb gum up etc. Does this / will this / is this acceptable for the 91 octane in my 912 ULS powered 701????
Again, value your thoughts.
Phil
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dwilde(at)clearwire.net
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| Posted: Mon Jan 31, 2011 8:38 pm Post subject: Gas storage vs problems |
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I just flew today for the first time in 5 weeks (fog and rain kept me
grounded) with premium auto fuel in my 701. The fuel was over a month
old and contained about 5-10% alcohol. I had no problem and the engine
ran fine.
Be sure to check for water due to condensation. I would think warmer
weather would be a bigger problem since evaporation would be a greater
issue. Temps here have averaged about 40-50 for the last 6 weeks.
Today the sky's were brilliant blue with over 10 miles visibility.
Great fun and good landings.
Dan
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ronlee
Joined: 25 Dec 2006
Posts: 141
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| Posted: Tue Feb 01, 2011 3:53 pm Post subject: Re: Gas storage vs problems |
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If you read the Rotax info they will talk about winter and summer gas. They have a very different vapor pressure. You should not use summer gas in the winter and vise versa.
Rotax says buy from a station that sells lots of fuel, especially high test.
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Ron Lee
Tucson, Arizona |
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