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Bio Diesel

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Hi All

I am asking this for my Dad he has a Octavia 2.0 TDI and was wanting to check if it was OK to use Bio Diesel with this car as he has had different answers on the subject.

Any help would be greatly appreciated!!!

Simon

If you do a search there have been other threads on this , and the ansere is basically "NO" :)

If it's the same as our 2006 2.0 TDi, there's a sticker on the inside of the fuel flap saying on no account to use biodiesel.

Red Diesel fine though....

;))

Mike

Red Diesel fine though....

;))

Mike

Until HMRC find out you are using it.

How?

I knew a Taxi driver whom used it in P/Hire on & off for 6 years and i knew a Traffic cop who was issuned with the test kit only ONCE!

Mike

How?

I knew a Taxi driver whom used it in P/Hire on & off for 6 years and i knew a Traffic cop who was issuned with the test kit only ONCE!

Mike

dont venture into wales then as theyve been stopping loads of cars and checking the tanks recently

and in your area too by the looks of it....

BBC NEWS | England | Red diesel checks for car drivers

They are getting much hotter with red diesel due to the big increase in users thanks to the high fuel prices.

You won't find me using it no matter how cheap it is.

Correct me if i'm wrong but don't HMRC/VOSA people actually do the roadside tests aided by the police?

Correct me if i'm wrong but don't HMRC/VOSA people actually do the roadside tests aided by the police?

yup, they have been around here

If you do a search there have been other threads on this , and the ansere is basically "NO" :)

I don't entirely agree with that. You might have come to this conclusion in this forum but in every other forum there are different thoughts. I have lost count of the posts I have put up on the subject and as I have been using Bio for about 200k miles in various cars I think I can comment on this;

1. Many people have run Bio in 2.0 PD's and been fine.

2. You cannot run it 100%, it will cause all sorts of problems but you can run a blend. About 20% is about as much as you want to go to in this current colder weather we are having going up to about 40-50% in the summer.

3. A lot of the diesel on the continent is cut with bio anyhow so I don't see how the majority of users are going to get round it. It's only between 5-10% but it's still a blend

I run a 1.9 pd Roomster which also has the magic NO BIO sticker on it. I have done 8000 miles in it on my regular blend at 20% and it loves it. The VRS I had before used to use up to 40% and that loved it (The fuel filter didn't but they were only £12 anyway).

To the OP: I have spoken to others who have used various grades in their 2.0 tdis and all have done many miles fine on it. However it's down to you how you do it and what you use, it isn't a silver bullet and there are side effects. Do a search on this forum and a few other sites regarding Bio. People on here tend to know their Skoda's but few of them know anything about using Bio because they haven't tried it.

Can I suggest trying here as a start;

http://www.briskoda.net/forums/ask-tech/biodiesel/97067/#post1118913

Then here (Which covers using Bio in an 06 Golf TDI which will be the same issue);

06 VW GOLF TDI advice required - Bio Fuels Forums

There could be an issue with the DPF (Which is explained on the above forum). If you don't have one fitted, I wouldn't worry ;)

Actaully, I have found a bit more information that might help anyone make a decision;

http://www.nrel.gov/docs/fy06osti/39606.pdf

Im afraid as with many studies this looks at one point & concludes the car can run on Bio Diesel which it can but fails to look at the whole picture & major shortfalls.

This sheds more light for those with particulate filters & reminds us not to trust all reports we read on face value

Operation with Bio Diesel is not possible. The extended injection period for regeneration of the Diesel Particulate filter can lead to unburnt fuel on the cylinder wall entering the engine oil from the Piston movement. Normal diesel fuel vaporises itself out of the oil in normal operating conditions. Biodiesel cannot do this effectivly due to its higher boiling point. The Oil is thinned as a result which can lead to Engine damage

This is extracted from VW self study programme 336, The Catalythic coated diesel particulate filter, Design & Functions.

Personaly I would be scheptical of using high concentrations of Boi Diesel in a car without a DPF until time has judged its effect on cars using it now for the same reasonnon

Im afraid as with many studies this looks at one point & concludes the car can run on Bio Diesel which it can but fails to look at the whole picture & major shortfalls.

This sheds more light for those with particulate filters & reminds us not to trust all reports we read on face value

Operation with Bio Diesel is not possible. The extended injection period for regeneration of the Diesel Particulate filter can lead to unburnt fuel on the cylinder wall entering the engine oil from the Piston movement. Normal diesel fuel vaporises itself out of the oil in normal operating conditions. Biodiesel cannot do this effectivly due to its higher boiling point. The Oil is thinned as a result which can lead to Engine damage

This is extracted from VW self study programme 336, The Catalythic coated diesel particulate filter, Design & Functions.

Personaly I would be scheptical of using high concentrations of Boi Diesel in a car without a DPF until time has judged its effect on cars using it now for the same reasonnon

Good point, it's very one dimensional in that respect. However, there is an entire thread on oil thinning on the Australian forum. Good discussion ;)

Correct me if i'm wrong but don't HMRC/VOSA people actually do the roadside tests aided by the police?

Nearly, all the police do is pull you over to the test area.

When i bought my Octy i was warned by a 'top mechanic' not to use red diesel, because it blows the turbo?? :rolleyes:

Just remind me when does the diesel go though the turbo?? :rofl:

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