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[albitz]

Illegal as no duty paid and its not exempt.My understanding is that modern (common rail ?) engines wont run on veggie oil.

[acope]

Common Rail Diesels which are mainly the newer engines. can`t / wont / shouldn`t run on it, as it will knacker the injector pump, my motor which is the older 5 pot Mercedes TD with the Bosch pump runs on it a treat, not special modifications required, I buy new veggie oil from a cash and carry in 20L cubees, if you intend to go round the chippies / take-aways etc you have to do a fair bit of filtering thro various micro filters etc, normally start off with something as simple as a J cloth which will filter down to 5 microns, you can get some real bad stuff tho` I have fitted a small-ish inline fuel filter in the main line, just before the main fuel filter, they can be changed very easy without the need to bleed the system.
During the summer months I run 100% veggie, in the cold winter I run about 70/30 veg and diesel, with a stand by fuel can of PETROL to add in case of exceptional cold,
you can not tell (other than that nice smell ) that its running on veggie, and it does wonders for your emissions,and your wallet,I believe that as long as you do not use in excess of 2000 litres per year, no tax chargeable.

[albitz]

I use a small inline filter before the main filter too.Even well filtered oil seems to be quite hard on the main filter and at over £15 a pop its worth trying to give them an easier life.
I filter my own oil and found it really messy work at first,but have now got a bit of a system/routine going which seems to work quite well considering I am very limited for space.
Im still running 100% veggie so far this winter but have a can of diesel/petrol mix to add if we get a really cold snap.

[Kevin Wood]

A mate of mine used to run a Vectra on veggie oil and he used to thin it using Jet A1 aviation fuel from the local Police helicopter no less!

They took fuel samples from the aircraft and fuel store before each sortie, a jerry can at a time, when a test tube would have been adequate. They were glad of someone to take it one it had been retained for the required period.

[Omegatoy]

AHEM,!! without saying to much,black diesel is far better than veg oil,and its usually free to collector as people want rid of it thats all im saying,hint hint

[Ian_D]

What does black derv burn like? Just seem to imagine it would make a right mess, and burn leaving horrid deposits behind caking everything in ash?

[Omegatoy]

nope burns great and smoother with more power

[STMO123]

Most petrol omegas run on a mix of engine oil and fuel anyway 

[albitz]

Never heard of black derv.whats its normal application ?

[omegod]

Never heard of black derv.whats its normal application ?

It comes out your sump

[omegod]

Never heard of black derv.whats its normal application ?

It comes out your sump

And strictly speaking requires duty to be paid if used as fuel

[albitz]

Cant see that being much good for the longevity of the diesel pump.

[Sir Tigger KC]

Cant see that being much good for the longevity of the diesel pump.

Or the fuel filter.... 

[albitz]

True,although I suppose it can be filtered before going in the tank the same as veggie oil.

[omegod]

True,although I suppose it can be filtered before going in the tank the same as veggie oil.

And it will have been regularly filtered whist running round the engine, down to 10 microns I think engine oil filters IIRC