REFLECTOR: Auto fuel

Ron N Velocity XLFG VelocityXL at fastmail.fm
Fri Mar 16 14:16:15 CDT 2012


I second the fuel additives are a problem.
Seen that been there.

Ron
  ----- Original Message ----- 
  From: Mike Dawson 
  To: Velocity Aircraft Owners and Builders list 
  Sent: Friday, March 16, 2012 11:37 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 Bloomfield Michigan. I'd be happy to talk to you about your problems and what I've learned from my problems.  Alcohol isn't the problem, it's the fuel injector cleaners that they started adding 9 months ago.  It is such a small molecule it literally slips threw the Jeffco coating in the tanks.  Our tanks look perfect inside but the fittings in the sump tank and the foam in the stakes just took a shit on us!  I'm still pretty sick about it!  I'm going to make the sump tank out of aluminum and were removing the outer glass skins and foam and adding another coat of Jeffco to the outside of the inner skin followed by 8 to 10 layers of bid.  Then foam and then the outer layer of glass again.  The wheel wells are about 1/8 " of glass and they look perfect still.  Our plane 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 glass loose around the fuel fillers on both sides.  That was just after Oshkosh 2011.  Then the foam started to sink in on the glass.  Then we stopped 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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