MegaSack DRAW - This year's winner is user - rgwb
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6 month old A6 here, warning came on saying 1500 miles to go at about 6k, so filled it up the following day or so with a 10l Halfords refill. Warning on today at just under 12k miles. So it looks like for my driving profile it last about 6-7k miles...
I presume it depends on the type of driving - mine is lots of slow city stop start stuff most days, longer runs at weekends.
Roughly a litre of adblue goes with every tank, so the 10 litre top up lasts 6000-6500 miles. That's on the BiTdi 2 litre.
^^^ that makes sense and ties in, cheers
Nox production is related to combustion temperature. The hotter, the more Nox.
Ergo, anything that works the engine harder will likely elevate.
Given the cooling system on an engine keeps it within given tolerances, I can't imagine that once it's up to temperature there will be an enormous variance in consumption?
Is this a new thing then? Last two cars were VAG diesels and never had to do that but my business partner has just got a new one and says there is this separate filler tank which I assume is for adblue.
Given the cooling system on an engine keeps it within given tolerances, I can't imagine that once it's up to temperature there will be an enormous variance in consumption?
The cooling system keeps the metal bits cool, but the combustion temperature isn't affected by that.
Nope been around for about 5 years it depends on the model.Is this a new thing then? Last two cars were VAG diesels and never had to do that but my business partner has just got a new one and says there is this separate filler tank which I assume is for adblue
johndoh - Member
Is this a new thing then? Last two cars were VAG diesels and never had to do that but my business partner has just got a new one and says there is this separate filler tank which I assume is for adblue.
something to do with cleaner emissions I believe.
Half the emissions things about VWs was how they managed to be the only major manufacturer of diesel vehicles which didn't use AdBlue...
I need to check the AdBlue concumption so that I can refill the tank at Halfords rates rather than main dealer rates...
^^^^ 10l tub in Halfords is about £14
Half the emissions things about VWs was how they managed to be the only major manufacturer of diesel vehicles which didn't use AdBlue...
Well apart from the ones that use AdBlue of course.
Don't even need to do that. My local BP garage is cheaper than Halfords which has the benefit of not having to go out of the way to get it.I need to check the AdBlue concumption so that I can refill the tank at Halfords rates rather than main dealer rates...
Fair point - thing is I've got 10l box of it at home which I'd bought before I discovered that car had a 23l tank so I might as well use it up.
Haven't got adblue in my Passat as it is just too old but the ****ing thing has just eaten its own high pressure fuel pump 🙁
God knows what that will cost to fix. £££££ probably.
some googling told me the tank is 17l and should last around 9k miles, depending on driving conditions. That is about 530 miles per litre, so with the light coming on at 1500 miles/3 litres remaining, my top up adds another 10l/5500 miles till light comes on again, sorted 🙂
In the next exciting episode, we find out how long it takes Iain to nail a full 4 ply toilet roll, and the cliffhanger.....
Is he a folder or a crumpler?...
[East(kilbride)enders drum sequence]
^^^^ I find that leaving it intact aids the downstream transport of the jobbies to the outfalls on the Ayrshire Riviera actually 😀
All useful information in here, I was wondering when I was going to get a warning to top the tank up!
The answer is "not enough".
Because having used cheat to meet Euro 5 they're using AdBlue to meet Euro 6 but just on the test cycle. The NOX levels are still way over test limits in real use and one reason is they don't throw in enough AdBlue because if they did... well you work it out.
Well, BMW don't use AdBlue.
How does that work for them and not VAG then?
There's the alternative of a NOX trap and burn system that Renault use. It doesn't work in town use as the engine needs to run at constant speed and load to initiate a cycle; so they work in the test but not where it matters most, in town. In real use they put aout between 7 and 11 times theh allowed limits which is why Renault is being prosecuted in France.
Well, BMW don't use AdBlue.How does that work for them and not VAG then?
I’m fairly sure they do.
It’s a relatively new thing, a 3 year old one might not.
No adblue in my 16 plate 3 series diesel!
Correct me if I’m wrong but it I don’t think BMW diesels use ad blue.
Correction - it only appears to be certain models rather than all
Because having used cheat to meet Euro 5 they're using AdBlue to meet Euro 6 but just on the test cycle. The NOX levels are still way over test limits in real use and one reason is they don't throw in enough AdBlue because if they did... well you work it out.
Source?
Not sure how easy it is to buy without an account, but the best place I've found for adblue is our local Mercedes commercial - 42ppl, iirc (+vat)...
10 litres seems to last about 9k in my 3 litre BMW X5. I used to buy it from Halfords but last time ordered it off Amazon and was about £20 for 20 litres. Interested in that Mercedes commercial price though!
I didn't know about this as now smug in a hybrid
If you fail to top up the level of this magical liquid does the vehicle stop working ? Or is it an approved test bodge ?
You can see new owners topping up but certainly not later in the vehicles life
If you fail to top up the level of this magical liquid does the vehicle stop working ? Or is it an approved test bodge ?
If it's empty, it won't restart from what I've been told. I get somewhere around 3000km of warnings about it being low and 1000km of it being empty. I've never gone lower than that to test the no-restart theory.
AdBlue does work, and it's a better solution than what we had before.
If AdBlue is made from urine, can't you just wee or SheWee n the tank?
So if you use adblue in your vehicle not only are you carting around a fuel tank that say holds 60ltrs, but now you are also carting around an extra tank holding another 30ltrs..
So effectively your car is always carting around a fat bloke when your tanks are full.
Just be sensible and buy a petrol next time.
I've got a 16 plate VW Alltrack 190bhp and its done 12k miles so far and I've put about 13 litres in so far. Bit of a faff, but it's a lease car and it's going back in May!
A couple of links then:
Diesels emit more CO2 than perols when you take into account the refining of diesel:
https://www.moniteurautomobile.be/actu-auto/environnement/diesel-pas-au-top-niveau-co2.html
As far as NOX is concerned the programming of the engine management for pollution control was covered by "Cash Investigations" on France 2. A series of interviews with people at Peugeot, Renault, the European Commission, France Nature Environment... . The AdBlue dosing or NOX reburn have a significant impact on engine performance and service intervals. The manufacturers were asked the right questions but failed to answer the critical ones as to why some of their vehicles with AdBlue met limits in real use (Peugeot 208) whilst others (Peugeot 5008) fail dismally - all passing on the rolling road homologation test.
Whilst no manufacturer said things like "a 200bhp vehicle used at motorway speeds would never get between services even with a 100l AdBlue tank if we dosed correctly at full power" or "our Capture would regularly go into limp mode after a few days of urban use if we did NOX burns at the necessary frequency". It was clear form the answers that the priority is to keep the NOX down under homologation condidtions and beyond that it was driveability that was the priority. Hence the prosecution of Renault which prevents them saying anything publically for the time being unless they just admit everything and grovel for forgivenes.
So the manufacturers are still poisoning us as the FRance Nature Environnement results for E6 diesels show:
The remedial action demanded is "recalibration" = turn your AdBlue pumps up guys.
Diesels emit more CO2 than perols when you take into account the refining of diesel:
My French isn't quite up to the task of that article but it seems to be just reporting the study, rather than breaking it down. However I think the energy cost of refining may depend on the source of the diesel. There's a fixed amount of diesel in our crude oil supply, and extracting that is not necessarily complex. But because demand is higher than supply they have to crack heavy oil fractions which is what costs lots of energy.
I agree that there are too many diesels on the road. But diesel probably still has a place.
How about in the future we ban pure diesel cars and only allow diesels in hybrids, and they must switch to EV only in towns and cities?
now you are also carting around an extra tank holding another 30ltrs..
err, no, scroll up a bit...
17l Adblue tank on the A6, which. apart from when new or just back from a service, is unlikely to have more than 13l in it.