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  #21  
Old 01-13-2016, 08:47 PM
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tomkk tomkk is online now
 
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Location: Port Orange, Fl
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Quote:
Originally Posted by ben barron View Post
Is the an additive one can put in to get the octane from 90 to 92?
Mix with 100LL ...
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Port Orange, Fl
RV-12 N121TK ELSA #120845
First flight 06/10/2015

Last edited by tomkk : 01-14-2016 at 06:21 AM.
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  #22  
Old 01-14-2016, 07:24 AM
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johngoodman johngoodman is offline
 
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Location: Peachtree City, Georgia
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Quote:
Originally Posted by RFSchaller View Post
What filters are you guys referring to? The gascolator or an inline filter you use during fueling?
I have a 40 micron reusable filter inline between the wing tank and the fuel system, on each wing. I have another filter just before the engine at 10 microns, but it's a throw away. The inline filter was put there to catch loose proseal, but it will catch anything else that's there. My engine is an auto conversion, so there are differences in fuel delivery.

John
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First flight was 25 June, 2011
N711JG
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  #23  
Old 01-14-2016, 07:38 AM
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Quote:
Originally Posted by tomkk View Post
Mix with 100LL ...
... and use http://www.serioussolutions.com/evo/octcalc.htm
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Builder's name: Jean-Pierre Bernoux
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Kit # 120395 N124BX
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  #24  
Old 03-24-2016, 01:22 PM
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A little update: I found a Sunoco service station serving 93 octane ethanol free premium a month ago but... on my last trip it had gone down to 91! The owner says he will know in April if it goes back to 93 (that would be for summer). In the mean time he sells an "octane booster" additive that claims to bring the octane of a 17 Gal. load to 100 octane. I checked the container but there were no indication of the composition of the content. I doubt Rotax would agree to support such mixture under warranty.
Back to ethanol fuel for the time beeing.
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Builder's name: Jean-Pierre Bernoux
Sport Pilot
Kit # 120395 N124BX
Flying as of 9/11/2013

Builder's Blog:http://vieilleburette.blogspot.com/
EAA 1114
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  #25  
Old 03-24-2016, 01:58 PM
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Quote:
Originally Posted by WingedFrog View Post
A little update: I found a Sunoco service station serving 93 octane ethanol free premium a month ago but... on my last trip it had gone down to 91! The owner says he will know in April if it goes back to 93 (that would be for summer). In the mean time he sells an "octane booster" additive that claims to bring the octane of a 17 Gal. load to 100 octane. I checked the container but there were no indication of the composition of the content. I doubt Rotax would agree to support such mixture under warranty.
Back to ethanol fuel for the time beeing.
91 octane should be OK, shouldn't it?
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Port Orange, Fl
RV-12 N121TK ELSA #120845
First flight 06/10/2015
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  #26  
Old 03-24-2016, 02:18 PM
funflying funflying is offline
 
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Location: arvada, co
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I've used ethanol free 91 without issue. I have 110hrs over 3 years now.
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Patrick Claar
Arvada, CO BJC
RV12, #401, Flying 2013, N612PC
RV6, 1996-2010 sold
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  #27  
Old 03-24-2016, 02:20 PM
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DaleB DaleB is offline
 
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From my copy of the POH:
Quote:
Approved Fuel Types

100 LL Aviation Fuel
or (91 AKI) Premium
Unleaded Automotive
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Omaha, NE
RV-12 # 222 N980KM "Screamin' Canary" (bought flying)
Fisher Celebrity (under construction)
Previous RV-7 project (sold)
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  #28  
Old 03-24-2016, 05:22 PM
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f1rocket f1rocket is offline
 
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Location: Martinsville, IN
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Quote:
Originally Posted by DaleB View Post
From my copy of the POH:
Actually, everyone flying a Rotax should be referencing the Rotax Service Instructions for use of the proper fluids in and on your engine. They change sometimes. The proper service instruction is SI-912-016R8 (as of today). Here's the link.

Lots of good stuff here. Its "must read" material for properly maintaining your Rotax.
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Martinsville, IN (II87)

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Paid through 2043!
Lund fishing Boat, 2017, GONE FISHING
RV-12 - Completed 2014, Sold
427 Shelby Cobra - Completed 2012, Sold
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  #29  
Old 03-24-2016, 06:59 PM
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tomkk tomkk is online now
 
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Quote:
Originally Posted by WingedFrog View Post
A little update: I found a Sunoco service station serving 93 octane ethanol free premium a month ago but... on my last trip it had gone down to 91! The owner says he will know in April if it goes back to 93 (that would be for summer). In the mean time he sells an "octane booster" additive that claims to bring the octane of a 17 Gal. load to 100 octane. I checked the container but there were no indication of the composition of the content. I doubt Rotax would agree to support such mixture under warranty.
Back to ethanol fuel for the time beeing.
I may have inadvertently gotten us sidetracked. My original response was more aimed at why the 91 octane ethanol free wasn't good enough and necessitated "Back to ethanol fuel".
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Port Orange, Fl
RV-12 N121TK ELSA #120845
First flight 06/10/2015
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  #30  
Old 03-24-2016, 07:04 PM
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N941WR N941WR is offline
 
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Location: SC
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Quote:
Originally Posted by N427EF View Post
Randy has it exactly right.
I cannot understand this crazy obsession with not wanting to use
E10.....
If you saw the aluminum float bowl of one of my generators after sitting idle for just a few months, you would NEVER put that trash in your plane!
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RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC
www.repucci.com/bill/baf.html
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