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peterlthomson(at)gmail.co
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 Posted: Tue Aug 26, 2008 11:30 pm Post subject: Use of ethanol blended autogas |
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I use E10 in my 200 hr 912ULS in CH701 from CZAW, as very hard to find
premium autogas anymore where I live.
I have absolutley no worries about this, and haven't noticed any drop
in power, or change in mpg.
I inspect bowl and floats at 50 hours and see no degradation. (If the
bowl is going to be eaten away it is going to take some time...) For
those concerned, Bing sell additive and alcohol resistant float and
bowl kit. Bing say this is all yhayt needs changing.
I keep tanks full to avoid any condensation.
I checked with CZAW who say their fuel lines resistant.
Rotax say OK up to 8000 feet and I've done time at 8500 with no effect.
I'm always conscious of vapour lock but never had a problem.
I live and fly in 33 deg C and 95 percent RH most of the year.
The only two negative comments I've seen on boards have been the one
from Brasil which said ethanol was why so many planes fall from sky
there, and the comment about vapour lock from a hot fuel pump.
Peter
CH701 SP fm CZAW
Rotax 912ULS
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K Dilks
Joined: 22 Sep 2008
Posts: 108
Location: UK
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| Posted: Mon Nov 10, 2008 1:26 am Post subject: Re: Use of ethanol blended autogas |
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Brazil = 20% ethanol blend.....................
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lucien
Joined: 03 Jun 2007
Posts: 721
Location: santa fe, NM
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| Posted: Mon Nov 10, 2008 6:12 am Post subject: Re: Use of ethanol blended autogas |
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| peterlthomson(at)gmail.co wrote: |
Rotax say OK up to 8000 feet and I've done time at 8500 with no effect.
I'm always conscious of vapour lock but never had a problem.
Peter
CH701 SP fm CZAW
Rotax 912ULS |
For what it's worth, this is practically pattern altitude where I live (northern new mexico where the ground is about 7000' MSL  ). 8500 on up to 10,000 MSL is pretty typical just kicking around the area.
So I'm kind of chicken to try E10 myself even tho my engine is out in the open. My plan is to run a blend of E10 and 100LL, which I figure will mitigate the bad effects of both (half the amount of ethanol and half the amount of lead) as well as keep the vapour pressure down. I'll still go to the recommended maint. intervals for when running leaded gas tho...
LS
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