Fuel Question...Age?

[Atwood, Mark]

According to the folks at PowerMaster, the Polypro jugs are not actually "air tight" in that they will "wick" fuel out over time, and moisture in, THROUGH the plastic. This takes years, not weeks or months.  

Not sure how much this would affect old fuel, and it's NOT the reason they changed to metal cans, but they do consider it a side benefit.  The canned fuel, if sealed, should have a significantly longer shelf life.

Moisture is an enemy..it sours fuel pretty quickly.

-Mark  (Sponsored Powermaster flyer)

-----Original Message-----
From:	Bob Pastorello [mailto:rcaerobob at cox.net]
Sent:	Sat 7/5/2003 5:50 PM
To:	NSRCAMail
Cc:	
Subject:	Fuel Question...Age?

I know this is a newbie kind of question...but I've never run into this before.  Sealed (good caps, tight) jugs in the dark, Mag 1/10% mix that I use all the time.
    Ran my 1.60 fine on the ground, but couldn't get a needle, and sounded lean at high end in flight; even dead sticked a couple times.
    Changed to a jug of fresh Ritch's Brew 15% (should have been about the same nitro) and it ran a lot better, had needle range, didn't try to overheat.

What can happen to sealed jugs, kept in temp.controlled, dark box....??

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




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