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Author Topic: Can I use biodiesel in my 2.5TD 1999 meega?  (Read 3134 times)

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berserkerboy

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Can I use biodiesel in my 2.5TD 1999 meega?
« on: 01 February 2008, 13:46:00 »
Between Lewes and Uckfield I came upon a service station selling a 50/50 biodiesel/low sulphur diesel fuel. Reduce your carbon footprint read their ad, but with a proviso that you should check it was okay for your car and that they wouldn't be liable!
At 99.9p I was too tempted and put 20 litres in to test it. With over 25lt normal diesel already in the tank I reasoned that I would end up with an approximate 25/75 mix. Surely this would be okay. Well the car behaved perfectly well on the 5 miles to get home so I'm hopeful. :)
Anybody know if the car can run okay on the stuff for sure?
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JamesV6CDX

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Re: Can I use biodiesel in my 2.5TD 1999 meega?
« Reply #1 on: 01 February 2008, 13:49:39 »
Properly created biodiesel should be fine (I'm not liable either!), but SVO / WVO is not so happy in the TD lump..
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tunnie

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Re: Can I use biodiesel in my 2.5TD 1999 meega?
« Reply #2 on: 01 February 2008, 14:01:29 »
i would'nt....
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berserkerboy

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Re: Can I use biodiesel in my 2.5TD 1999 meega?
« Reply #3 on: 01 February 2008, 14:02:14 »
I like your sense of humour! Thanks for the heads up on this. I'll see how she goes for the rest of the tank and buy some more at this price. Nearly 10% cheaper, even if the biofuel argument re: actual green credentials has not been laid to rest, is good news to me! :y
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tunnie

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Re: Can I use biodiesel in my 2.5TD 1999 meega?
« Reply #4 on: 01 February 2008, 14:04:11 »
Quote
I like your sense of humour! Thanks for the heads up on this. I'll see how she goes for the rest of the tank and buy some more at this price. Nearly 10% cheaper, even if the biofuel argument re: actual green credentials has not been laid to rest, is good news to me! :y

I would not risk blowing the fuel pump, and clogging the inlets for a minor 10% saving...

Modern diesels do not take well to biofuel....
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berserkerboy

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Re: Can I use biodiesel in my 2.5TD 1999 meega?
« Reply #5 on: 01 February 2008, 14:08:54 »
Okay, food for thought. I might have a quick look on the BMW forum later to see what people think. Thanks for the warning.  :-/
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davlad22

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Re: Can I use biodiesel in my 2.5TD 1999 meega?
« Reply #6 on: 01 February 2008, 14:11:13 »
At a bloomin quid I don't even think it's that cheap!  :o Certainly not worth damaging any engines for. I'd want it to be half that price before giving it a thought!  :)

However, the 2.5 TD is not that modern and as the boy has said, is the same unit used in the landrovers. I bet there's a a good few of them running on chip fat!  :y

As you said mate, if it's mixed 50/50 and makes a difference to your pocket, then that's what counts.
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tunnie

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Re: Can I use biodiesel in my 2.5TD 1999 meega?
« Reply #7 on: 01 February 2008, 14:15:34 »
Quote
At a bloomin quid I don't even think it's that cheap!  :o Certainly not worth damaging any engines for. I'd want it to be half that price before giving it a thought!  :)

However, the 2.5 TD is not that modern and as the boy has said, is the same unit used in the landrovers. I bet there's a a good few of them running on chip fat!  :y

As you said mate, if it's mixed 50/50 and makes a difference to your pocket, then that's what counts.

I doubt that
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JamesV6CDX

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Re: Can I use biodiesel in my 2.5TD 1999 meega?
« Reply #8 on: 01 February 2008, 14:18:20 »
Quote
Quote
I like your sense of humour! Thanks for the heads up on this. I'll see how she goes for the rest of the tank and buy some more at this price. Nearly 10% cheaper, even if the biofuel argument re: actual green credentials has not been laid to rest, is good news to me! :y

I would not risk blowing the fuel pump, and clogging the inlets for a minor 10% saving...

Modern diesels do not take well to biofuel....

PROPER biodiesel should be fine in many, many, many cars, and would be the right viscocity so couldn't clog anything up.

It's the chip fat in the tank that causes issues...
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davlad22

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Re: Can I use biodiesel in my 2.5TD 1999 meega?
« Reply #9 on: 01 February 2008, 14:24:29 »
Quote
Quote
I bet there's a a good few of them running on chip fat!  :y
quote]

I doubt that
Round our way it's the farms that brew all the 'bio-diesel'. I don't know how good it is, how it's sourced or what it's made from but I still bet there's a few old landy's knocking around on the stuff!
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TheBoy

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Re: Can I use biodiesel in my 2.5TD 1999 meega?
« Reply #10 on: 01 February 2008, 14:45:46 »
Quote
Quote
I like your sense of humour! Thanks for the heads up on this. I'll see how she goes for the rest of the tank and buy some more at this price. Nearly 10% cheaper, even if the biofuel argument re: actual green credentials has not been laid to rest, is good news to me! :y

I would not risk blowing the fuel pump, and clogging the inlets for a minor 10% saving...

Modern diesels do not take well to biofuel....
Its the BMW M51 lump.  Call it a lot of things, but not modern.
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davlad22

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Re: Can I use biodiesel in my 2.5TD 1999 meega?
« Reply #11 on: 01 February 2008, 15:46:05 »
Amen brother! So back to the original question, would you run it on properly refined biodiesel the TB???
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TheBoy

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Re: Can I use biodiesel in my 2.5TD 1999 meega?
« Reply #12 on: 01 February 2008, 17:34:36 »
Quote
Amen brother! So back to the original question, would you run it on properly refined biodiesel the TB???
Not if I didn't have that spare injection pump in the garage, coz I know they are about £1200...
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theowletman

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Re: Can I use biodiesel in my 2.5TD 1999 meega?
« Reply #13 on: 02 February 2008, 22:43:46 »
Quote
Between Lewes and Uckfield I came upon a service station selling a 50/50 biodiesel/low sulphur diesel fuel. Reduce your carbon footprint read their ad, but with a proviso that you should check it was okay for your car and that they wouldn't be liable!
At 99.9p I was too tempted and put 20 litres in to test it. With over 25lt normal diesel already in the tank I reasoned that I would end up with an approximate 25/75 mix. Surely this would be okay. Well the car behaved perfectly well on the 5 miles to get home so I'm hopeful. :)
Anybody know if the car can run okay on the stuff for sure?
Not cetain at all. My pals 57 plate Passat has a sticker near the filler neck warning against the use of biodiesel. Who knows for sure?
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waspy

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Re: Can I use biodiesel in my 2.5TD 1999 meega?
« Reply #14 on: 02 February 2008, 22:58:39 »
Have a look at this site, it may answer some of your questions
www.biotuning.co.uk
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