"Bad Alcohol"?

Discussion in 'PSI Superchargers Tech Questions' started by spitzerscott, Jan 26, 2010.

  1. spitzerscott

    spitzerscott Member

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    Hey guy's , maybe you can clear this up for me, can alcohol go bad with age? I have guys who run sprint cars who say they run 5 year old fuel, and I know guys who only buy what they need to get by. I have some stored in a sealed plastic jug that is probably 3 years old. What do you guys think? I think I can hear this coming. Thanks
     
    #1
    spitzerscott, Jan 26, 2010
  2. SoDak

    SoDak Active Member

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    We've had this conversation before, search the forum.
     
    #2
    SoDak, Jan 26, 2010
  3. spitzerscott

    spitzerscott Member

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    SODAK, sorry you forgot the answer, I'll try to find it.
     
    #3
    spitzerscott, Jan 27, 2010
  4. backmotor

    backmotor Owner/Crewchief/Test Pilot

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    Sealed drum good for at least 2 yrs, maybe longer, never kept it longer than that. It has been discussed at great length already :D
     
    #4
    backmotor, Jan 27, 2010
  5. mark6052

    mark6052 Member

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    short answer. plastic jugs "magically" suck in water. be very careful with this fuel. pour it in a glass jar, if its not crystal clear its got to much water. it will look milky, pour it out and by new. now dont ask what fuel is best. ;)
     
    #5
    mark6052, Jan 27, 2010
  6. john348

    john348 Top Alcohol

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    I have always used a Hydrometer to check it
    if the specific gravity is right, use it
     
    #6
    john348, Jan 27, 2010
  7. spitzerscott

    spitzerscott Member

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    Thanks guys, I have heard about the "magic" plastic jug. Thanks again.
     
    #7
    spitzerscott, Jan 28, 2010
  8. Flyboy68

    Flyboy68 Member

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    On that note...where can you find a chart that shows what the specific gravity should be at certain temps? Or do you all just make sure it's around .792ish? At what point do you say it has too much moisture in it?

    Josh
     
    #8
    Flyboy68, Jan 28, 2010
  9. secondwindracing

    secondwindracing top alcohol

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    josh I will look and see were my chart is and send you a copy..Dave
     
    #9
    secondwindracing, Jan 28, 2010
  10. Will Hanna

    Will Hanna We put the 'inside' in Top Alcohol
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    methanol

    Methanol is anhydrous, meaning it readily accepts water.

    I would only use old methanol if it was in a sealed, lined drum.

    Anywhere other than the west coast, as a general rule, it's not a good practice to run old alcohol when performance counts. The more water you have in the fuel is essentially adding artificial humidity to your combustion process. In classes where you have to pass fuel check, chances are it won't.
     
    #10
    Will Hanna, Jan 28, 2010
  11. Spud_Miller

    Spud_Miller New Member

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    Methanol specific gravity:
    .801 @ 50F
    .796 @ 60F
    .792 @ 68F
    .791 @ 70F
    .786 @ 80F

    Here's a methanol/nitro chart you might find useful: http://fuelinjectionent.com/tech/SG_Chart.pdf

    Will, I've sent you several messages (PM's and emails) inquiring about advertising on this site in the last couple of months - all unanswered. I assume you either aren't getting them or aren't interested in selling me ad space. If that's the case, the courtesy of a reply would be appreciated.

    Thanks,
    Spud
    www.fuelinjectionent.com
     
    #11
    Spud_Miller, Jan 28, 2010
  12. Will Hanna

    Will Hanna We put the 'inside' in Top Alcohol
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    email

    Spud,

    Check your email.
     
    #12
    Will Hanna, Jan 28, 2010
  13. SoDak

    SoDak Active Member

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    Yep, short memory and in a hurry:)
     
    #13
    SoDak, Jan 29, 2010

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