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[hasey]

Anyone running on veg oil? Seen talk of people running their 2.5 diesels on veg oil or mix off.

[j33pky]

Tried it but the 4lt didn't like it

[XJ Fan]

Anyone running on veg oil? Seen talk of people running their 2.5 diesels on veg oil or mix off.

I've dabbled; what do you want to know?

[The Smiths]

I do

90p/L at tesco at minute, 80p at asda if you can get any

as what do you want to know?

[XJ Fan]

90p/L at tesco at minute, 80p at asda if you can get any

How do you get those prices? Cheapest I have seen is £1 a litre

[The Smiths]

Tesco £6 for 5L of sunflower or rapeseed - or 2 for £9

[The Smiths]

you can also get soya oli at Costco / macro for a bit less

[hasey]

Just wondered if it was worth doing, more economical and can you just go right ahead and start using it without modifications.

[The Smiths]

MPG should drop a little - say 5 to 10%, but saving covers it.

Just pour it into the tank and away you go.

start at 25% oil, and then 50%

some say to keep a spare fuel filter with you - I've have been fine with veg oil, but put bio in and within 100 miles the filter clogs due to crap being pulled out of the tank/pipes.

I have run at 95/100% veg in summer - but don't both with it this high anymore.


Engine will run much quieter - and if you ever have problems with MOT emissions - you won't have using veg.

lots of other info - but you can always have a look here:  http://www.vegetableoildiesel.co.uk/mybbforum/

[hasey]

Cheers for that, may give it a go, have heard about the oil stripping the crap out the pipes, some mention disposable inline filters so will take this onboard.

[XJ Fan]

I have run anything from 25% up to 100% veg, with no issues.
I do use acetone as an additive though, 100ml on a full tank, and do this regardless of what fuel I use.
Veg oil is obviously cheaper, but is also thicker. I have had no issues in terms of pulling crap through the fuel lines (that I've noticed anyway), but when the ambient temp drops, then it can take a while to start the engine, especially if the temp is below 5 degrees centigrade (and certainly for below freezing) - this is when I run a much richer diesel mix.

[The Smiths]

I've used acetone - recommended dosage is 1ml per Litre of veg

also winter time a bit of petrol helps to thin it a lot better than diesel, say 5% petrol thins oil by as much as around 50% diesel

at one point I had over 1000L of new oil stored in 1L bottles - now I just buy and use when on offer in supermarkets

[ferretjuggler]

So the VM diesel  lump in the XJ has no apparent issues when fuelled by straight vegetable oil 

I am absolutely amazed TBH considering the low opinion that folk generally have of them.

I'd just like to point out that if you stick the stuff in other diesels there may not be such a happy outcome.

AFAIK anything with a CAV Lucas rotary pump (series LR, Mahindra )  has natural rubber seals inside the pump which are degraded by the vegetable oil.

[bgbazz]

I've used acetone - recommended dosage is 1ml per Litre of veg

also winter time a bit of petrol helps to thin it a lot better than diesel, say 5% petrol thins oil by as much as around 50% diesel

at one point I had over 1000L of new oil stored in 1L bottles - now I just buy and use when on offer in supermarkets

Over my way, during winter, temps down around the minus 15 or lower, petrol added to diesel seems to be normal practice. I never tried that mix in my 2.5CRD mainly because it had a very efficient fuel heater which never let me down.

[Dutch]

'Winterdiesel' is a well known thing on the continent. Either supplied as is at the pump or by adding 5 ltrs of petrol to a full tank.

I prevents the paraffin in the diesel from solidifying and blocking the fuel system at very low temperatures.

[bgbazz]

You are quite right Dutch. As I understand it...it changes the waxing component of cold diesel.

[The Smiths]

. I never tried that mix in my 2.5CRD mainly because it had a very efficient fuel heater which never let me down.

Good - CRD = common rail diesel, and oil = scrap engine, pressures are too high to run veg without major mods and twin tanks, and then not really worth it due to high repair costs.

[The Smiths]

So the VM diesel  lump in the XJ has no apparent issues when fuelled by straight vegetable oil 

I am absolutely amazed TBH considering the low opinion that folk generally have of them.

Just about a perfect engine to run on veg (as old Mercs are) indirect injection (helps prevent ring gumming) and mechanical bosch fuel pump - also even has an heated fuel filter

Old tech diesel engine - you just need to listen to one to realise that

[STUARTF]

Morning Gang
I used to run the Korando and Musso 2.9 TD on pure veg oil during the summer then mixing 50:50 with diesel during the winter.
In line filter changes at regular intervals a must and carry a spare just in case you need to change.
Cheap as chips plus the smell. If you can I would as its considerably cheaper. Law states 2500 litres a year.
S

[ferretjuggler]

I wonder if the Isuzu C240 lump in my CJ7 diesel would be tolerant of the stuff

IIRC the injector pump is a licence built copy of a Bosch unit.

Deffo indirect injection.

But then if it damages the injectors I dread to think how much for a recon 

[Bubba]

so whats the deal with the the bacteria issues where you get effectively a live jelly monster growing in the tank ? that arrantly stays in the system after you stop running veg oil     

[STUARTF]

Ive had no issues of the dreaded jelly mould and ran on veg oil for years. Regular in line filter changes stops the clogging up

[hasey]

What inline filters do you use Stuart?

[STUARTF]

Buy packs of 10 from eblag. I put them before main fuel filter. You can see when they are getting clogged up from debris in the tank. Unscrew jubilee clips and put the new one in. Comes with directional arrow for ease of fitments. Hope this helps

[bgbazz]

Ive had no issues of the dreaded jelly mould and ran on veg oil for years. Regular in line filter changes stops the clogging up

I've been reliably informed that a cup of petrol added to every tank full of veg oil stops the jelly problem. He is a cafe owner and recycles his deep fryer oil through a series of paper coffee filters before adding it to the fuel tank....adds the petrol at about the half way mark and goes on from there. The most common oil we find here is Sunflower and is sold commercially for around 15 pence per litre. There is no limit on how much you can use for any reason.

Just in case you are wondering what motor he is abusing....It's a VM 2.5,with just a tad over 300,000 miles on the clock which I checked out today. Sad thing was,the body hadn't kept up with the motor!