Today's Message Index:
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1. 05:16 AM - Re: 100 LL shelf life (bjudge@gmail.com)
2. 12:04 PM - 100 LL Shelf Life (Bruce Anthony)
3. 04:06 PM - Re: 100 LL shelf life (RV6 Flyer)
4. 04:09 PM - Off Topic ... For Charlie Cuss (Jerry Grimmonpre)
5. 04:21 PM - Re: 100 LL Shelf Life (Kelly McMullen)
6. 06:37 PM - Re: Off Topic ... For Charlie Cuss (MIKE JEFFERSON)
Message 1
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| Subject: | Re: 100 LL shelf life |
I know an ag pilot that buys 10,000 gal right before Jan 1 every year to
beat the tax man. He stores it above ground and then uses through the year.
According to this doc the shelf life is 1 year:
http://amd.nbc.gov/akro/library/opm/AM%20OPM%2006-AR-20.pdf
If you've got a place to store it go for it. Although with the dismal
economy oil will probably stay put for a while.
Bill
Message 2
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| Subject: | 100 LL Shelf Life |
You don't say how much you intend to buy, but based on 25 years working
in the petroleum industry, I recommend the following:
An important thing to consider is the loss over time of more volatile
fuel components such as butane and pentane. In older fuel, loss of
these components to any extent will adversely change the ignition
properties of the fuel. Poor starts is one big symptom of old fuel
(especially in colder climates). If you intend to keep the fuel for
awhile first make sure it's fresh when you buy it and store it in an
above ground tank with a floating roof. Store in a cool area out of the
direct sun, if possible. The floating roof on the AST reduces
volatilization of the light components. Also, if you're buying a large
quantity from someone who uses a lot of 100LL anyway, ask them if you
can buy a "position" in their tank. That way you'll be able to take
your contracted amount out of a tank that is being turned over on a
regular basis.
In any event, I wouldn't recommend using fuel stored in any container
that is open to the atmosphere for longer than a month or so (my
opinion, no hard facts). You could also check with a local FBO or your
supplier to see what they recommend.
Bruce Anthony
RV-9A building
Message 3
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| Subject: | 100 LL shelf life |
Searching the web=2C it appears that it is good for one (1) year.
Here are links to visit. If they do not work=2C Google "100 LL Shelf Life"
.
http://www.generalaviationnews.com/?p=628#more-628
>From the above:
"If you handle your own fuel=2C follow recommended handling and
inventory controls. 100LL avgas can usually be stored for about a year
with little or no concern. Auto gas should not be stored for more than
six months. If you have a large tank=2C it should have a floating suction
so that the fuel pumped out is clean and you do not disturb the
sediment on the bottom of the tank. It is also important that a tank is
allowed to settle after a delivery and prior to fueling.
Ben Visser is an aviation fuels and lubricants expert who spent 33
years with Shell Oil. Contact him at Visser@GeneralAviationNews.com"
http://209.85.173.132/search?q=cache:4wf_Ecg20soJ:amd.nbc.gov/akro/librar
y/opm/AM%2520OPM%252006-AR-20.pdf+100LL+shelf+life&hl=en&ct=clnk&cd=2
&gl=us
>From the above:
"Ensure that stored drums do not exceed established shelf life (Two years f
or Jet A & one year for 100 LL). Shelf life extensions can be obtained thr
ough fuel sample submittal and laboratory analysis.
Hope this helps.
Ensure stored drums do not exceed established shelf life (Two years for JE
T A & one
year for 100 LL). Shelf life extensions can be obtained through fuel sampl
e submittal aEnsure stored drums do not exceed established shelf life (Two
years for JET A & one
year for 100 LL). Shelf life extensions can be obtained through fuel sampl
e submittal and
Gary A. Sobek
"My Sanity" RV-6 N157GS O-320 Hartzell=2C
2=2C199+ Flying Hours So. CA=2C USA
From: rice737@msn.com
Subject: RV-List: 100 LL shelf life
To anyone who knows=2C
I have the opportunity to buy some 100LL at bulk pricing and was wondering
if anybody knows how long it will remain usable. It will be stored in an a
bove ground tank.
Thanks=2C
Paul
RV8 Flying Siren
135 hours and counting
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Message 4
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| Subject: | Off Topic ... For Charlie Cuss |
Charlie ...
If you are 'listening' I have a car question. Do you, or anyone else, know
if the timing belt for 2001 RX 300 Lexus, can be purchased from a regular
Toyota dealer? Could there possibly be a cost savings through Toyota?
Also, are the Goodyear belts just as good? The Lexus part number would be a
plus to copy from anyone going there lately.
Apologies to the List for the off topic.
Thanks ... Jerry
Do not archive
Message 5
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| Subject: | Re: 100 LL Shelf Life |
Most of your recommendations sound straight from the bible about mogas.
100LL has an RVP maximum of 7.0. Evaporation of components is extremely
slow. It is blended with inherently stable components such as alkylates.
A few folks made out very well draining fuel from stored WWII planes
when they were scrapped, with fuel that had sat in the planes for more
than a year, probably several years. Unless you are using the fuel in a
turbocharged engine, the slight loss of octane is unlikely to have any
impact. Likewise, with its low RVP avgas age has virtually nothing to do
with starting properties of aircraft engines. Many planes in cold
climates sit all winter, and have no problems with the gas in the
spring. Evaporation isn't an issue for planes that sit all summer in the
Arizona heat.
Kelly
A&P/IA
Bruce Anthony wrote:
>
> You don't say how much you intend to buy, but based on 25 years
> working in the petroleum industry, I recommend the following:
>
> An important thing to consider is the loss over time of more volatile
> fuel components such as butane and pentane. In older fuel, loss of
> these components to any extent will adversely change the ignition
> properties of the fuel. Poor starts is one big symptom of old fuel
> (especially in colder climates). If you intend to keep the fuel for
> awhile first make sure it's fresh when you buy it and store it in an
> above ground tank with a floating roof. Store in a cool area out of
> the direct sun, if possible. The floating roof on the AST reduces
> volatilization of the light components. Also, if you're buying a
> large quantity from someone who uses a lot of 100LL anyway, ask them
> if you can buy a "position" in their tank. That way you'll be able to
> take your contracted amount out of a tank that is being turned over on
> a regular basis.
>
> In any event, I wouldn't recommend using fuel stored in any container
> that is open to the atmosphere for longer than a month or so (my
> opinion, no hard facts). You could also check with a local FBO or
> your supplier to see what they recommend.
>
>
> Bruce Anthony
> RV-9A building
>
> *
>
>
> *
--
Message 6
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| Subject: | Off Topic ... For Charlie Cuss |
Jerry
My name is Michael Jefferson I am a grumman driver as well as a Toyota Tech
=2C
Yes you can get you timing belt from a toyota dealership=2C no you probely
wont save any
money=2C and no I do not think that Goodyear belts are as good as a toyota
product=2C
if this is your first timing belt 90k miles and 8 years later=2C why not sp
end an extra
couple of bucks and get another one that you can depend on for another 90k
miles
and 8 more years=2C No I do not work for Toyota anymore=2C Now I work for a
GMC PONTIAC
& BUICK dealership as a GM WORLDCLASS TECH=2C > From: jerry@mc.net> To: rv-
list@matronics.com> Subject: RV-List: Off Topic ... For Charlie Cuss> Date:
Grimmonpre" <jerry@mc.net>> > Charlie ...> If you are 'listening' I have a
car question. Do you=2C or anyone else=2C know > if the timing belt for 20
01 RX 300 Lexus=2C can be purchased from a regular > Toyota dealer? Could t
here possibly be a cost savings through Toyota? > Also=2C are the Goodyear
belts just as good? The Lexus part number would be a > plus to copy from an
yone going there lately.> Apologies to the List for the off topic.> Thanks
======================> > >
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