The TruckNet UK Drivers RoundTable • View topic (2023)

stvme2519 wrote:is it a myth our true you can use water if till you can get your hands on ad blue

well i for one won't be testing that theory,any one who does can post the result here when they get back from the job centre.

It's your fault boss.
You should have told me when i was listening.

www.youtube.com/watch?v=X8qFD2s0Fwg

it is a 32.5% solution of high-purity urea in demineralised water that is clear, non-toxic and is safe to handle

Urea is, in essence, a waste product. Urea is the human waste product known as urine

The 2009 Mercedes-Benz ML320 diesel model comes with the BlueTEC System to create a zero emissions vehicles. It uses a water-based urea solution (known to Mercedes as AdBlue) that is injected into the exhaust system and releases ammonia. This gets reacted with the nitrogen oxide emissions and gets converted into nitrogen and water within the catalytic converter

ad-blue is 32.5% high grade piss - 67.5% water
who ever invented this must be laughing all the way to the bank

merc0447 wrote:

it is a 32.5% solution of high-purity urea in demineralised water that is clear, non-toxic and is safe to handle

Urea is, in essence, a waste product. Urea is the human waste product known as urine

The 2009 Mercedes-Benz ML320 diesel model comes with the BlueTEC System to create a zero emissions vehicles. It uses a water-based urea solution (known to Mercedes as AdBlue) that is injected into the exhaust system and releases ammonia. This gets reacted with the nitrogen oxide emissions and gets converted into nitrogen and water within the catalytic converter

ad-blue is 32.5% high grade piss - 67.5% water
who ever invented this must be laughing all the way to the bank

Or just simply taking the piss. Here is all the ballcocks about it, plus 2 Material Safety Data Sheets (MSDS)

http://dgmk.de/downstream/report_616-1_e.pdf

http://www.sciencelab.com/xMSDS-Urea-9927317

http://www.adblueonline.co.uk/downloads/msds/air1.pdf

I suppose the only thing you could get is a PG9 if the VOSA bloke has a gas spectrometer in his John Bull nicking kit

one of the old school...whats a test ??

In the haulage industry since 1963

Water certainly works in a 2007 DAF 105 without any ill effect, a guy I worked for recently insisted that we use only water.

Im told thought that it wont work in the 2008 models - dont know why.

Putting anything other than Ad Blue in will bugger up the SCR

What is an SCR?
SCR stands for Selective Catalytic Reduction. Vehicles which are equipped with an SCR will carry an AdBlue storage tank in addition to the standard fuel tank. AdBlue is transferred from the storage tank and injected under pressure into the exhaust gases where a series of chemical reactions take place.

Essentially the process involves the AdBlue mixture being passed on to the super heated porous ceramic head of the SCR where the de-ionised water evaporates and the remaining urea is passed on as a reagent (breaking the Nitrous Oxides into mostly Nitrogen and Water).

Any contaminants present in the AdBlue will collect on the SCR, eventually causing it to clog and fail, therefore it is imperative for the AdBlue to remain free from impurities through all stages of production, storage and dispensing.

Pretty much like putting 4 star in your cat.

Just a quick question....but where does the "urea" come from?.

I mean, who actually collects it and how????

Is it animal or human and are there tankers driving around loaded with it???

bullitt wrote:Just a quick question....but where does the "urea" come from?.

I mean, who actually collects it and how????

Is it animal or human and are there tankers driving around loaded with it???

if there are then could that be classed as "taking the [zb]"

( language edit ) jd

Santa wrote:Putting anything other than Ad Blue in will bugger up the SCR

I hope you don't believe everything the polititions want you to believe.

It's your fault boss.
You should have told me when i was listening.

www.youtube.com/watch?v=X8qFD2s0Fwg

Santa wrote:Pretty much like putting 4 star in your cat.

Havent tried that,do you think it will rid them of fleas,frontline does'nt seem to work as well as it used too.

The reason it may bugger up the works is more to do with using piss than adblue, adblue is manufactured to a specification.

If you read the first link I put in it says that Urea is a solid and the simplest way to be able to inject it into the exhaust system was to mix it with water.

Using water may well bugger up the reading from the emissions but I reckon a new SCR will still be cheaper than all the wind and piss you have injected up your chimney pot.

There are hundreds of tankers driving around with Adblue, they normally say Brenntag Air-One on the side.

The truck will use 5% of the fuel used in Adblue which will cost you 65 pence per litre. How much will it cost you to buy one SCR to keep in the shed to be used at MOT time?

Or why not just buy EGR and save money on a bigger diesel fuel tank

jonah65 wrote:Can you still drive if the adblue has run out or can it harm the engine?

The vehicle still runs, but according to the manual (haven't had it run out yet) to keep to legal requirements the engine runs at about 60% power.

faulkner wrote:

jonah65 wrote:Can you still drive if the adblue has run out or can it harm the engine?

The vehicle still runs, but according to the manual (haven't had it run out yet) to keep to legal requirements the engine runs at about 60% power.

That is the important bit, Im not even sure about that either, Does it work like an empty washer bottle and keeps telling you that you need to fill up and sends a message to the ECU telling it to piss the driver off and cut his power output by 40%,

Other stories I heard about is the AdBlue dosing pump will burn out if it is run dry.

Quite possible. Im sure if you kept pumping the screen washer pump whilst it was dry, then it too would burn out. There is certainly no lubricating additives in the AdBlue, how can there be, you are spraying it straight onto the road or into the atmosphere.

So if the only effect of AdBlue is to cool a ceramic filter, by spraying the equivalent of Chanel Number 5 into the exhaust. (after the engine don't forget) I dont understand how it can harm the engine.

Wheel Nut wrote:Other stories I heard about is the AdBlue dosing pump will burn out if it is run dry.

I would have thought that if the vehicle can tell there is no more adblue and reduce the poor it would stop trying to pump adblue through.

faulkner wrote:

Wheel Nut wrote:Other stories I heard about is the AdBlue dosing pump will burn out if it is run dry.

I would have thought that if the vehicle can tell there is no more adblue and reduce the poor it would stop trying to pump adblue through.

Too simple

I wanted a classic car. I might buy a smokey routemaster bus instead, who cares about a bit of soot?

Hombre wrote:Water certainly works in a 2007 DAF 105 without any ill effect, a guy I worked for recently insisted that we use only water.

Im told thought that it wont work in the 2008 models - dont know why.

Correct it will work on the 2007 but not on the 2008 models as one chap found out at work.

stvme2519 wrote:is it a myth our true you can use water if till you can get your hands on ad blue

A truck built pre nov. 2007 does not have a nox sensor fitted so it doesnt know if you run out of ad blue.The pump will try to spray regardless and eventually burn out but as you weren using it anyway its no loss. Just be carefull on two things
1-a traffic cop will check your ad blue gauge for compliance and
2-your local dealer may fit a nox sensor without telling you

faulkner wrote:

jonah65 wrote:Can you still drive if the adblue has run out or can it harm the engine?

The vehicle still runs, but according to the manual (haven't had it run out yet) to keep to legal requirements the engine runs at about 60% power.

This is true for vehicles made in 2008, and may become true for older ones too. I've been told that my 2006 euro5 DAF will be reprogrammed at some point (already has a NOX sensor) to go into limp-home mode when the ad-blue runs out, right now, it doesn't do that.
In Germany, to get the euro 5 reduction on the MAUT, you have to have ad-blue in the tank, or if the BAG gets you, you'll face a huge fine.

Note to self.

1) remove nox sensor.
2) don't go to germany.
3) don't get caught.

It's your fault boss.
You should have told me when i was listening.

www.youtube.com/watch?v=X8qFD2s0Fwg

On my volvo this time last year i had to put water in as no adblue available to buy, but now most places stock it ,
If there was still a bit left in the tank i could put a couple of litres of water in which would give me another 160 kms to find some (my volvo does about 85 kms on 1 litre of adblue)
But if the tank was empty and pure water was added the nox sensor would pick this up and the engine would derate from 520 hp to 300 hp 40% i think at the next time i stoped or as the dash warning would say (high emisions engine will derate at next stop)
And as skids say the cheapest place to buy it is AS24 in France 30p a litre cheaper than the UK ripoff britain again.

Its an offence to run without it

They're going to have to expand the addblue network.

Was watching Discovery the other weekend, programme about the manufacture of the new BMW straight 6 diesel engine, apparently, it uses something new on the market called Urea solution, that is injected into the exhaust after the catalytic converter.

Would this be called addblue?

http://www.greencar.com/features/bmw-diesels/

Extract from article
To fully comply with emission standards in California and other U.S. states, BMW uses selective catalytic reduction (SCR) technology to handle NOx emissions. Called BluePerformance, it incorporates an oxidation catalyst placed just downstream of the exhaust manifold, a diesel particulate filter (DPF) housed in the same unit, and an SCR catalyst incorporating urea injection. In addition to filtering out even the smallest particles from the exhaust gas, this combination ensures effective reduction of nitric oxides (NOx) by way of a chemical reaction within the exhaust system. This reaction is initiated by the injection of a small dose of urea, or “AdBlue.” AdBlue is already widely used in Europe. The ammonia generated within the SCR catalyst converts nitric oxides into benign nitrogen and water vapor.