REFLECTOR: Auto fuel

[nmflyer1 at aol.com]

Thanks! 


That is definitely some good information to know. I inspected my tanks this week. I have had Clean Mogas in there for about a year (being cycled through as I run things). So far, no problems. I used a scope to look around as well as checked for leaks and soft spots in the tanks/sump. 


Not knowing what blend of fuel you may get is the scary part. As was mentioned, there are many different blends based on company requests, location, time of year, etc. I suppose the only safe way to use Mogas in the V would be to find the exact name of the additive that is causing the problem. 


I am part owner in the 100LL fuel company at my Airpark. When we take delivery of our fuel load, we get a spec sheet that gives all the details of that fuel load. I would assume that that is a rule. 


One thing for sure, It is not worth the problems in the V to save a few bucks. 


Thanks again, 


Kurt 



-----Original Message-----
From: Mike Dawson <medawson250 at yahoo.com>
To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
Sent: Fri, Mar 16, 2012 10:37 am
Subject: REFLECTOR: Auto fuel



To all who use Auto fuel,
Here is Bill Mulrooney's response to my brother's inquiry of his auto fuel / mogas experience.
For those who do not know, Bill and his partner built a Velocity with a 427 V8...N427VA....it boogies!



Hi Bill,
"Sorry to hear your having issues also.  I live in West BloomfieldMichigan. I'd be happy to talk to youabout your problems and what I've learned from my problems.  Alcohol isn'tthe problem, it's the fuel injector cleaners that they started adding 9 monthsago.  It is such a small molecule it literally slips threw the Jeffcocoating in the tanks.  Our tanks look perfect inside but the fittings inthe sump tank and the foam in the stakes just took a shit on us!  I'mstill pretty sick about it!  I'm going to make the sump tank out ofaluminum and were removing the outer glass skins and foam and adding anothercoat of Jeffco to the outside of the inner skin followed by 8 to 10 layers ofbid.  Then foam and then the outer layer of glass again.  The wheelwells are about 1/8 " of glass and they look perfect still.  Ourplane has had auto fuel in it since 2004 with no problem till August 2012. The vapor build up between the inner and outer glass and then popped the glassloose around the fuel fillers on both sides.  That was just after Oshkosh2011.  Then the foam started to sink in on the glass.  Then westopped flying it. "

Bill Mulrooney



I stopped by my non branded Commercial Fuel Network outlet yesterday and this is what I learned. While there is no Ethanol in their fuel they service several stations. IE Chevron, 76, Mobil, Shell etc. Fuel received from the refinery contains the additives for that company's fuel. Consequently the fuel they sell to me , as non branded with no Ethanol, contains different additives or blends of additives from each company. They guarantee no Ethanol but any combination of additives after that are anyone's guess. So Kurt et al take heed. I'll be using 100LL for now!
Mike Dawson


 
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