AdBlue... anyone?

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roxburd

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Does anyone use AdBlue?

If you do, do you know how much benefit it provides?

It's injected into the exhaust, right, so it has no effect of the engine, performance or fuel economy whatsoever. It basically converts "some" nitrous oxides back into nitrogen and oxygen.

I just bought 10 litres for £33

That's more than twice the price of diesel... and it's two-thirds water. The other third is urea - urine... pee... wee-wee... I'm trying to use the less offensive words... it is actually dilute urine and I'm paying twice what I pay for diesel. And I have no idea how effective it is but I do know that I'll burn more diesel to haul 10Kg of dilute p*ss around. I must be mad.

What's annoyed me is that the spout wasn't long enough to open the anti-spill device in the filler so I had to make my own spout up. What a faff!

Even then, the spout isn't long enough to get the last 50cc from the container into the filler!

I don't think I'll be buying AdBlue on the road again.

Strikes me as the sort of thing the petro-chemical companies figure they can make a killing on and some dozy politician decides they can make their name on and in fact it does no good whatsoever. But I could be wrong - please enlighten me :-)
 
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LiamD said:
Why isn't the anti-crystalising additive added at source?
Click to expand...
I've asked myself the same question. Makes me conclude that the extra additive is most likely unnecessary and/or "snake oil" in most scenarios.

Perhaps in motorhomes that only do 2 or 3 thousand miles a year it might be beneficial, but for typical diesel vehicles doing normal mileages I don't think crystallisation should be a problem.
 
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Westbarn1 said:
I try to fill up with adblu at a garage point, it's easier. There is a garage close to where we are parked at the moment and the adblu fill is part of the pump dispense unit (I'll get a picture tomorrow, as I'm going to use it when we move on in the morning), alongside the petrol and diesel pumps and its 65p a litre.
Click to expand...
You can also fill a suitable container at that price for those times and locations where it might be difficult to find
 
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swemmy666 said:
You can also fill a suitable container at that price for those times and locations where it might be difficult to find
Click to expand...
When I first had an AdBlue motorhome in 2015 I was warned against doing that by a Mercedes commercial garage. I was told that the use by date was more about the plastic containers it comes in than the AdBlue itself. Standard plastic containers slowly release plasticisers and over time this can contaminate the AdBlue which has to be very pure to avoid problems. The plastic components of the AdBlue system are presumably made of more expensive plastics that do not release plasticisers.

I was given similar advice about the use by dates and the plastic containers used for Efoy fuel.
 
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Filled up this morning, fuel and adblu same pump



IMG_8394.jpeg

IMG_8392.jpeg
 
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Razorbill said:
Just wait until the injection system goes awry. Even main dealers appear stumped. I am struggling with Citroen and the technology is pretty much for same on all ad blue systems . Warning lights galore and financial distress follows. I wouldn’t touch a modern diesel system again on a car and fortunately I couldn’t afford a modern motorhome using that technology. I’m buying 20 year old motorhome !
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Every, and I mean every, vehicle I have had with adblue has had a serious problem with it. 100% failure rate.
And yes I use the proper stuff, refill at the garage pump and look after my vehicles.

Adblue just not fit for purpose and is a great money maker for the dealers.

Give you an idea of how bad it is l, have you seen how many software companies etc are now openly advertising deleting the adblue system. Loads of them.
 
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roxburd said:
Does anyone use AdBlue?

If you do, do you know how much benefit it provides?

It's injected into the exhaust, right, so it has no effect of the engine, performance or fuel economy whatsoever. It basically converts "some" nitrous oxides back into nitrogen and oxygen.

I just bought 10 litres for £33

That's more than twice the price of diesel... and it's two-thirds water. The other third is urea - urine... pee... wee-wee... I'm trying to use the less offensive words... it is actually dilute urine and I'm paying twice what I pay for diesel. And I have no idea how effective it is but I do know that I'll burn more diesel to haul 10Kg of dilute p*ss around. I must be mad.

What's annoyed me is that the spout wasn't long enough to open the anti-spill device in the filler so I had to make my own spout up. What a faff!

Even then, the spout isn't long enough to get the last 50cc from the container into the filler!

I don't think I'll be buying AdBlue on the road again.

Strikes me as the sort of thing the petro-chemical companies figure they can make a killing on and some dozy politician decides they can make their name on and in fact it does no good whatsoever. But I could be wrong - please enlighten me :)
Click to expand...
AdBlue, aka D(iesel) E(xhaust) F(luid). Used to neutralise NOx emissions. Yes, it's urea; yes, pee contains urea but in much lower concentrations. If your moho needs adblue, it will go into severely restricted 'limp' mode if it doesn't get it (no idea whether it detects NOx or if it just senses no flow). ECU could potentially be reprogrammed to ignore its absence, but possibly (probably?) an MOT fail.
 
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Dramfineday I see there are two versions of wynns: commercial vehicles and passenger cars.

www.wynns.eu

AdBlue® and SCR | Wynn's Europe

Professional automotive technicians are noticing a rise in SCR-related breakdowns due to AdBlue® crystallization. Find out how to solve it.
www.wynns.eu www.wynns.eu

Which one do you use and do you just use the whole bottle then fill up the adblue?

Thanks
 
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clonkel said:
Dramfineday I see there are two versions of wynns: commercial vehicles and passenger cars.

www.wynns.eu

AdBlue® and SCR | Wynn's Europe

Professional automotive technicians are noticing a rise in SCR-related breakdowns due to AdBlue® crystallization. Find out how to solve it.
www.wynns.eu www.wynns.eu

Which one do you use and do you just use the whole bottle then fill up the adblue?

Thanks
Click to expand...
Isn’t it just because of the Adblue tank size that they do two different bottle sizes. The car one is a bottle to 20ltrs.
 
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Hettie's Crew said:
Isn’t it just because of the Adblue tank size that they do two different bottle sizes. The car one is a bottle to 20ltrs.
Click to expand...
Not sure but now you mention the common sense approach then yes

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We have a 2016 Audi A4 2,000 diesel, 27400 miles from new. Adblue only ever topped up by Audi when serviced, system warning light ad blue fault no restart in 600 miles. £2230 to fix. Luckily our van 2019 is non ad blue
 
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Bessy765 said:
We have a 2016 Audi A4 2,000 diesel, 27400 miles from new. Adblue only ever topped up by Audi when serviced, system warning light ad blue fault no restart in 600 miles. £2230 to fix. Luckily our van 2019 is non ad blue
Click to expand...
I’m sure it’s because on lower mileage, not used as often diesels the AdBlue sits in there for a very long time, topping up a little each service. Ours was the same, only topped up at service, I never touched it.
As said in my previous post, I’ll now be draining it out annually and refilling with a fresh AdBlue/Wynns mix, it’s only about £25 to do.
 
Upvote 0
roxburd said:
Does anyone use AdBlue?

If you do, do you know how much benefit it provides?

It's injected into the exhaust, right, so it has no effect of the engine, performance or fuel economy whatsoever. It basically converts "some" nitrous oxides back into nitrogen and oxygen.

I just bought 10 litres for £33

That's more than twice the price of diesel... and it's two-thirds water. The other third is urea - urine... pee... wee-wee... I'm trying to use the less offensive words... it is actually dilute urine and I'm paying twice what I pay for diesel. And I have no idea how effective it is but I do know that I'll burn more diesel to haul 10Kg of dilute p*ss around. I must be mad.

What's annoyed me is that the spout wasn't long enough to open the anti-spill device in the filler so I had to make my own spout up. What a faff!

Even then, the spout isn't long enough to get the last 50cc from the container into the filler!

I don't think I'll be buying AdBlue on the road again.

Strikes me as the sort of thing the petro-chemical companies figure they can make a killing on and some dozy politician decides they can make their name on and in fact it does no good whatsoever. But I could be wrong - please enlighten me :)
Click to expand...
£33 for 10 litres. We bought 10 litres in QD in Sheringham last week for £9,99. Similar price in Home Bargains
 
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Hettie's Crew said:
I’m sure it’s because on lower mileage, not used as often diesels the AdBlue sits in there for a very long time, topping up a little each service. Ours was the same, only topped up at service, I never touched it.
As said in my previous post, I’ll now be draining it out annually and refilling with a fresh AdBlue/Wynns mix, it’s only about £25 to do.
Click to expand...
My GLC was doing 20000 miles a year. So used a lot and tank topped up. It could do around 15000 between top ups.
4 months out of warranty started getting issues. Costly to repair. When parts were available and the dealer knew what they were doing. A specialist diagnostic company err better.

Also think about commercials and how they are used and miles driven. They have loads of issues too.
 
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FrankNicklin said:
Yeah but 10 litres of AdBlue will last considerably longer than 10 litres of diesel. The comparison in price isn’t relevant. You will get probably 3000 miles from that 10 litres. Wish I could get 3000 miles from 10 litres of diesel.
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I wish!

Our FIAT based motorhome seems to average 150 miles per litre of AdBlu.

We don’t push it. As we are retired we have plenty of time.

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maison said:
I wish!

Our FIAT based motorhome seems to average 150 miles per litre of AdBlu.

We don’t push it. As we are retired we have plenty of time.
Click to expand...
The Peugeot boxer is around 500 miles per litre.

It seems that variance is considerable between some makes
 
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Hettie's Crew said:
Isn’t it just because of the Adblue tank size that they do two different bottle sizes. The car one is a bottle to 20ltrs.
Click to expand...
clonkel said:
Dramfineday I see there are two versions of wynns: commercial vehicles and passenger cars.

www.wynns.eu

AdBlue® and SCR | Wynn's Europe

Professional automotive technicians are noticing a rise in SCR-related breakdowns due to AdBlue® crystallization. Find out how to solve it.
www.wynns.eu www.wynns.eu

Which one do you use and do you just use the whole bottle then fill up the adblue?

Thanks
Click to expand...
I bought a bottle of the commercial size (500ml) Wynns and decanted some into a 50ml bottle, which is enough to put in the tank with 10L of Adblu

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Westbarn1 said:
I bought a bottle of the commercial size (500ml) Wynns and decanted some into a 50ml bottle, which is enough to put in the tank with 10L of Adblu
Click to expand...

Is the ratio of Wynns to Adblue (50ml to 10L) a recommendation from Wynns?

thanks
 
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What if you don't put any Adblue in and tie the tank float up so the van thinks it's always full? My van doesn't use it but it sounds like a plan 😈
 
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My wild guess is that the system can analyse the exhaust gas because when I ran out of Adblu and then topped up fully (and messily as the spout is never long enough) it took 3 days and 100 miles before the warning light went out.

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pat100 said:
My wild guess is that the system can analyse the exhaust gas because when I ran out of Adblu and then topped up fully (and messily as the spout is never long enough) it took 3 days and 100 miles before the warning light went out.
Click to expand...
The system in my GLC has two nox sensors. One either side of the AdBlue injector so it knows if it’s being added or not also there’s a flow meter for the feed pump
 
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