[Vwdiesel] WVO question

[dieseltdi at verizon.net]

Running veggie oil, even diluted with diesel, will eventually gum up  
the injection pump and injectors.  They must be purged with good,  
clean diesel before shut down. The heat inside the injectors and the  
pump will slowly cook the residual oil, ending up with a gummy mess  
that locks everything up.   Now, that being said, it will take longer  
for that to happen with diluted veggie oil but it will happen.  There  
is a guy locally who bought a really expensive "green diesel" system  
that purported to completely purify the oil so that you could burn it  
with no problems in any vehicle.  As proof they would show an engine  
that had been run "continuously" on the stuff for many many hours.   
The clue here is continuously.  The gummy stuff does not form until  
engine shutdown when the oil left standing in the pump and injectors  
slowly cooks after shutdown. He ran the stuff in varying mixtures  
with diesel for about 4 weeks and began to have starting and running  
problems.  I suggested he stop using the stuff, run a couple of cans  
of Diesel Purge through his system and run nothing but diesel or  
biodiesel for a few tanks.  Luckily for him, he was able to clear the  
fuel system before the problem got serious.  SO..... If you are going  
to use WVO you need either a second tank, or just do what I do, make  
biodiesel.  hayden

On Jul 17, 2005, at 4:16 PM, mikitka wrote:

> Been thinking of running on WVO, the local burger shop in town uses  
> soy oil
> in their deep fryer and switches out about 9 gallons of oil every  
> 10 days.
> I did some searching online but didn't find what I was looking for.  
> Question
> is can you run a mix of WVO and diesel safely in your tank.  If the  
> WVO was
> filtered can you run say 5 gallons of it to 9 gallons of diesel  
> with no
> problems?  What issues will I run into running it like that. Just a  
> thought
> until I can get my Jetta set up for it.
>
> Thanks,
>
> Nick
>
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