Author Topic: VW biodiesel policy  (Read 7102 times)

Offline Julian

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VW biodiesel policy
« on: June 19, 2014, 07:51:11 AM »
I just found this pdf from VW, indicating which of their cars will run on bio.

Not many it would appear!  But we know different.

I've stuck it on the wiki here ...  http://www.biopowered.co.uk/wiki/Volkswagen_biodiesel_policy
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Offline julesandtash

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Re: VW biodiesel policy
« Reply #1 on: June 20, 2014, 12:48:39 AM »
Good find there.
Rather nicely, mine is one of the few.
For the Audi Allroad it says, under the 100%RME Approval column : - From start of production. Can
cause faults with the parking/auxiliary heater.

I am not too fussed about the auxiliary heater so looks like it's a good choice for bio  :)
7+ years of making bio.
1997 RangeRover P38A 2.5DSE and 2001 Audi Allroad 2.5 V6 Tdi all on B100
Home heating and hot water system on Palm based B100 and Aarrow 7KW wood burner on glycerol logs

Offline RichardP

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Re: VW biodiesel policy
« Reply #2 on: June 20, 2014, 01:41:59 AM »
I saw an earlier version of that some time ago, it was totally different, a lot of the cars on the newer one that say 'not approved' were listed as approved for 100% RME, including all the Passat PDs 97-05.

Offline Julian

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Re: VW biodiesel policy
« Reply #3 on: June 20, 2014, 08:47:11 AM »
I'm sure when I checked the handbook of our MK4 golf, it said OK for 100% FAME, now this states only RME.
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Offline Jonzeyboy43

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Re: VW biodiesel policy
« Reply #4 on: June 21, 2014, 09:25:14 AM »
I like others have always thought all diesels will run on bio but there are risks. Just had my 5 injectors serviced on my d5 by small local company I went into workshops and he showed me the internals they were minging. Advised me bio is bad, the injectors  have been running my bio through them for best part of 4 1/2 years so cost is well offset by savings but all the same they were sticking. Spanner monkey told me the problem with common rail is the high temp and pressure which causes problems with bio. He also told me a sticking injector could seriously feck the engine, bent rods etc. injectors back in now car running really nice.

Offline Julian

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Re: VW biodiesel policy
« Reply #5 on: June 21, 2014, 09:40:35 AM »
What were the symptoms which prompted you to get the injectors checked and what was the cost?
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Offline Jonzeyboy43

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Re: VW biodiesel policy
« Reply #6 on: June 21, 2014, 12:19:30 PM »
The car has not been running right for a while, quite noisy, some times lack of power refusing to rev past 2500, when the revs hit 3000 change in tone of engine, and more revs not giving much more pace. Had codes over pressure / under pressure several times so changed filters no significant crap in the filter. White smoke on start up black smoke on hard acceleration and over run. Last week started hesitating at medium revs sounded like a petrol cars missing. Overall though very clattery. When I stripped them out they were a bit manky but not the worst the spanner monkey had seen, according to him, however internals were really manked. Checking was only £15 each, this was then waved into the cost of the refurbished injectors £130 each.

Offline bradburypizza

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Re: VW biodiesel policy
« Reply #7 on: January 06, 2015, 10:25:06 PM »
saw this on Fords official German sight
Question: Can I fill up my diesel vehicle with biodiesel?
Answer: Durability and reliability are product characteristics that are especially expected from modern diesel engines. The so-called biodiesel is usually generated by the chemical conversion of rapeseed oil with methanol and is therefore called correctly rapeseed methyl ester (RME). This is a relatively " aggressive "fuel, which can lead to increased wear of seals, fuel pumps and fuel tank in continuous use. In particular, the durability of the injection pump is no longer present. The operation of our diesel vehicles is therefore only allowed with the usual diesel fuel, which may have added up to 5% biodiesel by law. Back to top

Offline 1958steveflying

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Re: VW biodiesel policy
« Reply #8 on: January 07, 2015, 01:34:16 PM »
 Odd to see that while some vehicles are 100% compatible none are B30 compatible !

Offline John Galt

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Re: VW biodiesel policy
« Reply #9 on: January 09, 2015, 11:00:38 AM »
There are far fewer problems with cold-filtered biodiesel/petrol/kerosene  blends vs B100, especially with computerized common rail systems.

Offline K.H

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Re: VW biodiesel policy
« Reply #10 on: January 09, 2015, 08:09:45 PM »
VW Beetle 03 TDi

Quote
RME fuel (diester)
corresponding to DIN 51 606
Vehicles with diesel engines can also run on RME fuel (Rapeseed Methyl Ester)
PLEASE USE ONLY RME FUEL WHEN FILLING UP WITH DIESTER
Notes
Performance figures may be slightly lower
Fuel consumption may be slightly higher
THE FUEL FILTER COULD BLOCK UP IF FUEL IS USED THAT DEVIATES FROM THE NORM
RME can be used in winter to temperatures down to approx minus 10 oC
We recommend that diesel fuel be tanked at ambient temperatures of under 10oC
DRIVING IN WINTER
When using summer diesel trouble may be experienced at temperatures below 0oC because the fuel thickens due to wax separation.
For this reason, \"winter diesel\", which is more resistant to cold, is sold during the winter in Germany.
In countries with different climatic conditions the diesel fuels offered have a different temperature characteristic. Check with VW dealers or filling stations in the country concerned regarding the characteristics of diesel fuels.
The vehicle is fitted with a filter preheater. This will ensure that the fuel system remains operational down to approximately minus 24oC provided that the winter diesel used is cold resistant down to minus 15oC.
If, at temperatures below minus 24oC the fuel is waxed to such an extent that the engine will not start it is sufficient to place the vehicle in a warm room for a while.
« Last Edit: January 09, 2015, 08:45:22 PM by K.H »

Offline Julian

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Re: VW biodiesel policy
« Reply #11 on: January 09, 2015, 08:36:22 PM »
PETROL OR SIMILAR AGENTS MAY ....


May what?
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Offline K.H

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Re: VW biodiesel policy
« Reply #13 on: January 09, 2015, 08:45:57 PM »
PETROL OR SIMILAR AGENTS MAY ....


May what?
Cant remember ;D