RE: Unwashed biodiesel concern

From: Glenn Shaw (milspectruck@verizon.net)
Date: Wed May 03 2006 - 06:49:35 PDT


I would think it is just a matter of quantity. With the water dispersals
you are adding a couple of 12 oz cans. Bjorn may be talking about enough of
a quantity that it all will not remain azeotropically bonded to the water
and begin to come off as significant amounts of Methanol vapor. That could
pose a problem near the tank vent if someone lit up a ciggy. I would just
monitor the sit and see, but I would definitely not have any fuel system
venting near any source of ignition to be safe.

Glenn
MTA
MVPA

-----Original Message-----
From: Military Vehicles Mailing List [mailto:mil-veh@mil-veh.org] On Behalf
Of Rick v100
Sent: Wednesday, May 03, 2006 9:14 AM
To: Military Vehicles Mailing List
Subject: Re: [MV] Unwashed biodiesel concern

Isn't alochol used in most fuel dryers? So what is the difference between
having the methanol left in and adding fuel dryer?

--- Bjorn Brandstedt <super_deuce@hotmail.com> wrote:

> I do have one concern about using unwashed biodiesel
> and that is the fact
> that methanol starts to boil at 148 deg F.
> This could be a factor in a hot climate with the sun
> beaming down on the
> fuel tank.
> I have received a couple of numbers from Kenny in
> Florida and Ken in TX on
> the fuel temp, but those were not maximum or worst
> case conditions.
>
> It could be a fire hazard.
>
> If any of you would care to add to this, I would be
> most appreciative.
> Just measure the fuel temp with the engine running
> (return fuel is hot) and
> report the highest temperature with the sun hitting
> the tank. I suspect 150
> F would not be out of question.
>
> TIA
>
> Bjorn
>
>
>
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