general engine discussion thread - Page 16 - RC Groups
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Aug 14, 2012, 09:09 PM
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seeingeyegod's Avatar
Quote:
Originally Posted by datsunguy
And I have seen just the opposite. I bought 60 gallons of Hobby Shack White Lightening years ago. It has been stored under my basement stairs sitting on a concrete floor since I bought it. Hobby People hasn't been Hobby Shack for at least ten years and this fuel is older than that. Runs as well as it did the day I bought it.

What fuel has tell tale, moisture indicating dye?
I wonder if that is due to a different (better?) type of bottle too. Most fuel is in transparent jugs, not that white opaque stuff.
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Aug 14, 2012, 09:11 PM
Methanol, The Cool Fuel !
Gary Cee's Avatar
As I said, not all plastic bottles and not all floors , moisture conditions are alike . No where did I offer an absolute , "It will happen, every time" . Under the "right" conditions , moisture contamination can and will occur .

Quote:
Originally Posted by seeingeyegod
I wonder if that is due to a different (better?) type of bottle too. Most fuel is in transparent jugs, not that white opaque stuff.
Yes , There is indeed a difference . Certain high density poly jugs are less susceptable to osmosis etc
Last edited by Gary Cee; Aug 14, 2012 at 09:17 PM.
Aug 14, 2012, 11:30 PM
Registered User
I also have fuel in clear plastic that is just as old and still works well. I bought a lifetime supply. Oh well, such is life. You still haven't said what fuel uses a moisture indicating dye.
Aug 15, 2012, 12:18 AM
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seeingeyegod's Avatar
Quote:
Originally Posted by datsunguy
I also have fuel in clear plastic that is just as old and still works well. I bought a lifetime supply. Oh well, such is life. You still haven't said what fuel uses a moisture indicating dye.
Maybe its the same kind of dye that shows whether you are peeing in the pool
Aug 15, 2012, 01:44 AM
Registered User
another old wives tale. We didn't believe it in YMCA camp and snuck out and peed in the pool one night. NADA

One of the Olympic divers was asked if he peed in the pool and he said yes and they all do it. No dye there.
Last edited by datsunguy; Aug 15, 2012 at 01:52 AM.
Aug 15, 2012, 01:51 PM
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seeingeyegod's Avatar
Quote:
Originally Posted by datsunguy
another old wives tale. We didn't believe it in YMCA camp and snuck out and peed in the pool one night. NADA

One of the Olympic divers was asked if he peed in the pool and he said yes and they all do it. No dye there.
Nasty!
Aug 15, 2012, 07:19 PM
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Quote:
Originally Posted by seeingeyegod
Nasty!
Any poo poos in da pool ? Cheers the pope
Aug 15, 2012, 08:53 PM
AMA Another Mans Airplane
cale10's Avatar
Quote:
Originally Posted by the pope
Any poo poos in da pool ? Cheers the pope
LOL! THE POPE! love the name!
Aug 15, 2012, 10:58 PM
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kerwin50's Avatar
O you nasty nasty boys.
Aug 16, 2012, 12:36 AM
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Quote:
Originally Posted by cale10
LOL! THE POPE! love the name!
Peace to you too , my son . Cheers the pope
Aug 16, 2012, 09:58 AM
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Nav_Aids's Avatar
Quote:
Originally Posted by datsunguy
I also have fuel in clear plastic that is just as old and still works well. I bought a lifetime supply. Oh well, such is life. You still haven't said what fuel uses a moisture indicating dye.
Gary is correct about the plastic jugs, both Torco and VP racing fuels reccomend that you do not use plastic for storage just for transfer of fuels. Mind you Torco and VP are talking about 99.9% pure alcohol and not mixed fuel. I know nitro in certain plastics is ok but, racing alcohol I prefer metal drums. I have seen moisture get inside sealed plastic 5 gallon containers. I store my RC fuel in plastic, off the basement floor, and the temperature never changes. This is VP's take on plastic and storage.

Q) "How long will VP fuels last in one of your plastic fuel containers?

A) I would personally use it within 2 to 4 weeks. A plastic container is designed for fuel transfer, not storage. If you are going racing for a week or weekend, it's OK to put your fuel in the plastic containers. I just recommend that when you get to your shop you put the fuel back in the drum and seal it. This will keep it fresh. Plastic is porous. Even though the liquid fuel doesn't leak out, the light ends of the fuel can evaporate out of the plastic. Plus the sun's UV rays can penetrate plastic and the lead may drop out. Again, plastic containers are designed for transfer, not storage."

As for the dye there is 2 differnet kinds I know of, one is a liquid you pour into the tank, very large above ground tanks and shows up water when you drain off the sump. The other, one that I have used is a paste that you put on a stick and then dip the container or tank. The paste changes color when it contacts water. The name slips my mind at the moment but, I can get you the name of the product. Gas stations are susposed to use it regularly to dip their tanks and check for water. Any good company that services gas station fuel pumps should have some or just Google "water paste" or "water finding paste"

Cheers
Ray
Aug 16, 2012, 10:14 AM
Dieselized User
gkamysz's Avatar
And how long does fuel sit before you get it in your hands?

What "light ends" and lead in methanol are they talking about? It sure sounds like VP is talking about gasoline in that FAQ response.

Greg
Aug 16, 2012, 11:30 AM
Methanol, The Cool Fuel !
Gary Cee's Avatar
Greg ,

In our case it isn't about light ends getting out so much as moisture migrating in . Not all plastic containers are equal . Alcohol has a much higher affinity for water than does gasoline .

The containers I am talking about were 25+ years ago . They may have come a long way since then . Nothing to argue about for me , I have seen it happen first hand .
Aug 16, 2012, 01:23 PM
Hope to get out of life alive
kenh3497's Avatar
Concrete is actually quite porous, at least to water vapor. That is why it's a good idea to put plastic under a concrete floor used in a living space.

Ken


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