Re: Diesel & cooking oil

From: Dick (rertman@ix.netcom.com)
Date: Sun Oct 02 2005 - 08:16:46 PDT

Kent:

"Just cooking oil" is simply the oil used for cooking...usually in a deep
fryer...from restaurants.
It's simply filtered thru a filter that allows nothing larger than 2 microns
to pass thru, then added
to the fuel tank such that the ratio is 80% petrodiesel and 20% cooking oil.
This oil is usually
referred to as waste vegetable oil (WVO).

Biodiesel starts with WVO, then is processed using lye and methanol (an
alcohol) and is then
either added to the vehicle fuel tank along with the petrodiesel, or used
100% instead of petrodiesel.

A note of caution. Running 100% biodiesel, or even a high percentage of
biodiesel almost always
requires modification of the vehicle's fuel delivery system because the
biodiesel isn't compatible
with rubber (synthetic or natural) hoses and seals designed for use with
petrodiesel.

For what it's worth, I mix 20% filtered WVO and 80% petrodiesel in my fuel
tank.

Regards,

Dick

----- Original Message -----
From: <santoken@bright.net>
To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
Sent: 02 October, 2005 06:28
Subject: Re: [MV] Diesel & cooking oil

I've been paying attention to this topic for some time, I have a question,
what is the difference betwwn biodiesel and just cooking oil?

Kent

>
> From: "Bjorn Brandstedt" <super_deuce@hotmail.com>
> Date: Sun Oct 2, 6:35 AM
> To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
> Subject: Re: [MV] Diesel & cooking oil
>
>
> Hoses and seals and even copper may be effected by biodiesel, no problem
> with clean cooking oil.
>
> When you increase the percentage of oil you increase the chances of
> injector coking. Maybe it should be called coking oil. :-)
>
> If you want to run on 100% oil, heat the tank and
> start and shut down on diesel. That way the risk for coking is
> minimized. It does require two fuel tanks.
> My current project involves just that, I have installed a coolant
> heating coil in the main tank and will add a second diesel tank
> (about 10 gallons) for starting/warming up and shutting down to
> purge the system of oil.
> I have been running my deuce on biodiesel and some cooking oil and
> diesel since April. Currently 100% biodiesel.
>
> Bjorn
> MVPA19212
> Meadows of Dan,Virginia
>
> 1968 M49A2C (modified), 1972 HIAB crane, M756 pipeline truck bed...
>
>
>
> >From: "Dick" <rertman@ix.netcom.com>
> >To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
> >Subject: Re: [MV] Deisle & cooking oil
> >Date: Sat, 1 Oct 2005 17:48:05 -0700
> >
> >Thanks for the info, Darrell. I'm using 20% used frying oil in my
> >Dodge/Cummins pickup truck.
> >Someone on the list said not to use more than 20% vegetable oil because
> >some
> >hoses and seals
> >might be damaged.
> >
> >Thanks again,
> >
> >Dick

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