Title: Biodiesel
Post by: JE2002 on August 28, 2006, 10:12:00 am
Hello all,
Fuel prices are higher and higher!
Has anybody experience with biodiesel?
Do I have to replace anything inside or outside my 1.9 dti diesel engine
to run on 100% biodiesel?
Kind regards :),
Boris
Fuel prices are higher and higher!
Has anybody experience with biodiesel?
Do I have to replace anything inside or outside my 1.9 dti diesel engine
to run on 100% biodiesel?
Kind regards :),
Boris
Title: Re: Biodiesel
Post by: Lennart Sorth on August 28, 2006, 11:14:57 pm
Depends on what you mean with biodiesel, - something you buy at a fuelstation, or something a local farmer produces in smaller quantities ?
From what I have heard, no modifications are indeed required for any of these fuels - they should be directly useable on DT and DCI engines.
However, with regard to the "local farmer" product, it is apparently common practice to fit an extra fuel filter in parallel, and a valve, to switch between the two.
The idea being that the local farmer will not be able to filter it sufficiently, hence the extra filter.
When you have to switch from the one to the other, you replace the clogged one.
/Lennart
From what I have heard, no modifications are indeed required for any of these fuels - they should be directly useable on DT and DCI engines.
However, with regard to the "local farmer" product, it is apparently common practice to fit an extra fuel filter in parallel, and a valve, to switch between the two.
The idea being that the local farmer will not be able to filter it sufficiently, hence the extra filter.
When you have to switch from the one to the other, you replace the clogged one.
/Lennart
Title: Re: Biodiesel
Post by: Anders Dinsen on August 28, 2006, 11:25:23 pm
From what I have heard, few standard diesel engnes can run on 100% rape oil, but a 50/50 mixture with mineral diesel oil should work.
The rebuilds necessary should (again: as far as I have heard) concentrate on low pressure pump and injectors.
- Anders
The rebuilds necessary should (again: as far as I have heard) concentrate on low pressure pump and injectors.
- Anders
Title: Re: Biodiesel
Post by: JE2002 on August 29, 2006, 04:37:36 pm
Thanks for the reply Lennart and Anders,
What I mean with biodiesel is quality biodiesel that doesn't hurt the engine.
I prefer no change to the engine, although extra fuel filter is a good idea.
Are Espace diesel engines biodiesel certified?
Cheers,
Boris
What I mean with biodiesel is quality biodiesel that doesn't hurt the engine.
I prefer no change to the engine, although extra fuel filter is a good idea.
Are Espace diesel engines biodiesel certified?
Cheers,
Boris
Title: Re: Biodiesel
Post by: Lennart Sorth on August 30, 2006, 12:53:18 am
Are Espace diesel engines biodiesel certified?
Don't think so, - which is why Anders's suggestion of running on a mixture is probably as far as I would go myself. (providing I could GET any bio-fuel legally)
However, I have friends running their diesel cars (including Espace's) on 100% farmer-produced rapeoil, and have been doing so for years.
Some of the biodiesels are even said to lubricate the fuel-path of the engine better than the fossil oil based diesel.
hmmm - Do we have any chemetry/fuel experts in this forum ?
/Lennart
Title: Re: Biodiesel
Post by: Matra_Hans on August 30, 2006, 10:29:17 pm
Hi
If you are running the car on 100% rape oil you need a preheater for the fuel. This can be a heat exchanger utilizing the engine heat or an electric preheater or a combination.
Further you will need a two tank instalation as you need to start the car on diesel as the rape oil is not heated when you want to start the engine.
Check this sites:
http://www.vow2.co.uk/Whatare.htm
http://www.elsbett.com/
http://www.lowimpact.org/factsheetvegoilmotoring.pdf#search=%22heater%20biofuel%20car%22
regards Hans
If you are running the car on 100% rape oil you need a preheater for the fuel. This can be a heat exchanger utilizing the engine heat or an electric preheater or a combination.
Further you will need a two tank instalation as you need to start the car on diesel as the rape oil is not heated when you want to start the engine.
Check this sites:
http://www.vow2.co.uk/Whatare.htm
http://www.elsbett.com/
http://www.lowimpact.org/factsheetvegoilmotoring.pdf#search=%22heater%20biofuel%20car%22
regards Hans
Title: Re: Biodiesel
Post by: JE2002 on August 30, 2006, 11:06:38 pm
Very good information Hans,
So when 100% Vegetable Oil is used the preheater, special filters, etc. are needed.
But at some fuelstations they sell 100% Biodiesel which is different than Vegetable Oil I guess?
Kind regards ;),
Boris
So when 100% Vegetable Oil is used the preheater, special filters, etc. are needed.
But at some fuelstations they sell 100% Biodiesel which is different than Vegetable Oil I guess?
Kind regards ;),
Boris
Title: Re: Biodiesel
Post by: beemerjay on January 05, 2007, 02:08:03 am
I have a 96 2.1TD espace and in winter i mix Pure veg oil at a ratio of 3 litres for every 7 of mineral oil
30% solution Then when the temperature rises (as in the weather improving) I use 50:50 mixture and so far it runs better on the mix than just pure diesel
Unfortunately it Smells funny?
P.S. If you use a "recycled" biodiesel You must continue to use that, because if you use it and then change back to mineral diesel there are fats which redissolve off the tank walss and block filters extremely quickly!
30% solution Then when the temperature rises (as in the weather improving) I use 50:50 mixture and so far it runs better on the mix than just pure diesel
Unfortunately it Smells funny?
P.S. If you use a "recycled" biodiesel You must continue to use that, because if you use it and then change back to mineral diesel there are fats which redissolve off the tank walss and block filters extremely quickly!
