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[hoofing it]

I've had a good search around only to find that there isn't much reason not to use Biodiesel (If it's well made) in a 2.5TD Omega. Well, apart from the lift pump maybe but I suspect that would be a problem if you where using untreated WVO or SVO.

Now, I manufacture my own stuff using a decent sized reactor, methanol, caustic soda and unfortunately I still wet wash the stuff but I will be switching to dry washing soon.

This is a 100% mix where the end result is a nice cold tea coloured liquid with more or less the same viscosity as normal pump diesel and none of the cold starting problems that you normally see with using untreated WVO or SVO.

Anyone else here using the same methods / end results? Any snags that you have come across?

Any help or advice would me most appreciated.

BMW engines don't like BIO fuels...

I suspect with a proper biodiesel they MAY be ok if they have a bosch or strong injection pump - but SVO or WVO in a BMW TD - forget it!

Pugs on the other hand - will burn anything you throw in them - talking from experience 

I agree with the above 2 replies.
The bmw td fitted to the mig/p38 range rover doesn't like bio you might find it runs with it but through time it will not like starting then it won't start all and run like a bag of sh**e as the bio lacks the oil that is in diesel to lubricate the main fuel pump.
Oh a new fuel pump can cost £800-£1700 .
If you want to run a car on bio buy a pug/citroen 1.9td

[Opel 2.5TD]

MY 2.5TD ran happily on bio diesel for about 10 months, then got a severe misfire at idle. I eventually cleared it by doing diesel magic  trick twice and running on regular non supermarket diesel for  a couple of months but after all that and worrying if the fuel pump (and therefore the car) was a write off I won't be using it again!