Fuel Question...Age?

[Bob Pastorello]

Interesting insights/experiences.  Seems the majority of input says there shouldn't be a problem; unless something gets unsealed somehow.  I always mark my jugs level with a line on the outside of the jug when new, so I can detect any reduction....
    Thanks for the on- and off- line responses!

Bob Pastorello, Oklahoma
NSRCA 199, IMAC 1320, AMA 46373
rcaerobob at cox.net
www.rcaerobats.net


  ----- Original Message ----- 
  From: Ihncheol Park 
  To: discussion at nsrca.org 
  Sent: Sunday, July 06, 2003 2:19 AM
  Subject: RE: Fuel Question...Age?


  I've been using Magnum fuels in quarts until now for the past 4 years.  All were stored in shade, in the shipping carton.  Never had any problem even from 2 years old fuel.

  I just got a fresh batch of 3 cases Magnum DZ fuel.  They didn't come with those red inner caps that come with Morgan's Coolpower.
  So, I opened all the bottle, slightly push one side to level up the fuell to the top of the bottle. Then, used saran wrap between the cap and the bottle.  If any air and moisture goes in the fuel bottle, I will know by the shape of the bottle later on.

  Also, it often takes more than a few weeks to finish a gallon of fuel, so I began using Slimline fuel cap since early this year with one outlet plugged with check valve, so that no air goes in to the fuel jug.  When I begin to use a new gallon fuel, I take as much air out before putting on the cap.   So far, it kept my fuel fresh enough not to feel any difference.  Anybody using it?

  http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXNB27&P=7

  Ihncheol
    -----Original Message-----
    From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]On Behalf Of billt38122 at comcast.net
    Sent: Saturday, July 05, 2003 8:52 PM
    To: discussion at nsrca.org
    Subject: Re: Fuel Question...Age?


    I am using cool power 25% and it is 8 yrs. old with know problem. I live in Fl. and will finish the 10 gal's I have left this year.

    Bill T.
      ----- Original Message ----- 
      From: EHaury at aol.com 
      To: discussion at nsrca.org 
      Sent: Saturday, July 05, 2003 11:27 PM
      Subject: Re: Fuel Question...Age?


      Bob

      I've used fuel that's been stored in the original shipping cartons for 5+ years with no problem. However, a few years ago Magnum had a batch of jugs that would develop a small crack, usually near the top in the vapor space, from flexing due to thermal expansion / contraction of the fuel. Generally it's pretty obvious, as the jug is not full due to escaping methanol. The remaining fuel is less volatile and can give varied performance.

      The jug's "breathing" also admits moisture containing air, however moisture is not as detrimental as some profess. (Consider the amount of water in the 6 or so lbs of air the engine consumes per lb of fuel.) Minimizing methanol's exposure to air both limits moisture incursion and volatile matter excursion, both bad.

      Earl 
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