Cooking oil Deisel

[drew@scirocco.cs.uoguelph.ca (Drew MacPherson)]

We're actually talking about two different animals here.

Biodiesel is a manufactured diesel fuel substitute, made through a
chemical process from a vegetable oil stock (soy, canola etc.)  It can be
burned at 100% in place of petroleum diesel in most vehicles.  Because of
the nature of the oil, it may be hard on some pump older seals, causing
them to leak, but they can be replaced easily with newer seals.  
Biodiesel has very low toxic emissions, making it attractive in Europe,
and it is gaining in popularity here.

Vegetable oil can be burned in a diesel engine provided it is heated to 
68-70C.  Sites like greasecar and veggievan sell kits for converting your 
passenger car diesel to dual fuel.  Two tanks are required, plus a cutover 
system and a heater for the fuel.  Older, less complex systems use an 
engine coolant heat exchanger to heat the fuel (copper tubing wrapped 
around an adapter that goes in the upper rad hose usually.)  Newer systesm 
use 12V fuel heaters which are available commercially.  The system has to 
be plumbed so that the starting fuel (diesel) is not contaminated with the 
running fuel (vegetable oil.)  People who use this system usually purchase 
used fryer oil and strain and filter it to remove impurities.  Vegetable 
oil also has lower emissions, and the exhaust smells like french fries... 
:)

HTH, 

Drew (84 Wolfsburg Ed. Turbo Diesel Scirocco, soon to be intercooled!)


On Thu, 13 Feb 2003, Rick Alexander wrote:

> It's called Bio Diesel, do a search and you will find info. I auto cross
> with a Jetta running Bio, smells great!
> 
> The stuff does require some refining. In the summer you can run it stand
> alone but in the colder times it requires straight diesel to start due to
> gelling issues.
> 
> Rick Alexander
> 
> ----- Original Message -----
> From: "Rhett Farnum" <rocco_crossing@hotmail.com>
> To: <scirocco-l@scirocco.org>
> Sent: Thursday, February 13, 2003 1:41 AM
> Subject: Cooking oil Deisel
> 
> 
> > hey all,
> > my brother has heard of people taking deisel rabbits and trucks and using
> > cooking oil in replacement to deisel. It is not a full conversion, you
> still
> > need something to start it running, but we are talking minimum of 75%
> > cooking oil. This would be great because you could get a deal w/ a local
> > fast food resturant for your fuel to get around. Talk about a fuel cost
> cut.
> > Anybody else heard of this?
> > What about a deisel rabbit truck in the midwest for sale? He and I both
> > would like to maybe give it a try if we can get a good price on the
> vehicle.
> >
> >
> >
> > Peace Out,
> > Rhett
> > Rocco_crossing
> > '83 Rocco (autocross ready, 31 days till season opener)
> > '92 Olds Cutlass Ciera (DD)
> >
> >
> >
> >
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> 
> 
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