Adblue Refill: Timing and Options

[Poursay]

Just some suggestions from people. My pvc has now covered nearly 11000 miles and the adblu was topped up at around 5000 miles when the light came on ( no gauge to say how low) . I am expecting it to come on at anytime and it is in for a service next week.
I was given an unopened 5 litre container of Adblu last summer which has stayed in the dark in the garage. Should a) I wait until the light comes on, b) use the Adblu I have or c) ask the garage to top up?

 

[Odd job]

I top up before the warning comes on and use a container I got on Amazon that's kept in a dark shed

 

[mapman]

Having had issues in the past when driving home with light on and then filling up and not able to start…… I calculated that I could comfortably get 1500 miles on tank of ad blu so now top up at that mileage point. Try to use pump at garage rather than container so I know exactly how much was required. So far this has worked well.

 

[ontheroadagain]

I top ours up every 1000 miles.
I have never seen the warning light.
I assume you have a Peugeot?
If it was a Fiat it would have needed a top up before now.

 

[seasideBill]

Just some suggestions from people. My pvc has now covered nearly 11000 miles and the adblu was topped up at around 5000 miles when the light came on ( no gauge to say how low) . I am expecting it to come on at anytime and it is in for a service next week.
I was given an unopened 5 litre container of Adblu last summer which has stayed in the dark in the garage. Should a) I wait until the light comes on, b) use the Adblu I have or c) ask the garage to top up?

Dealer told me I’ll have a 1000 miles after warning light has come on.

I’m new to the world of Adblu and have just discovered some folks use an additive to prevent crystals forming in the fuel system - fact or hype?

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[David and Sally]

I have another 1600 miles so says the info on the dash. I have just bought five ltrs with a years shelf life.
Top up now and add to the older stuff in the tank, or wait a bit and top up when a warning comes on.?

 

[gus-lopez]

If I had adblue I would check it & top up the same as I do with the windscreen washer bottle, daily. It would never be less than completely full.

- fact or hype?

fact.
Even supermarkets sell it I was looking at a Goodyear anti-crystallisation bottle in one this morning

 

[seasideBill]

If I had adblue I would check it & top up the same as I do with the windscreen washer bottle, daily. It would never be less than completely full.

fact.
Even supermarkets sell it I was looking at a Goodyear anti-crystallisation bottle in one this morning

Wouldn’t it be nice if the standard Adblu formula included an ingredient to prevent that or is that naive? Reminds me of Redex, still available but how many of us have experienced mechanical failure because they don’t use it?

 

[InvictaMoto]

I topped mine up in the autumn before I set off for France and Spain. I topped it up again yesterday and it took half a 5-litre bottle. I didn't make a note of the mileage when I did it though last time. Maybe I am being over cautious but I'd rather have a full(ish) tank instead of a 5-litre bottle sitting in the garage....

 

[ontheroadagain]

I’m new to the world of Adblu and have just discovered some folks use an additive to prevent crystals forming in the fuel system - fact or hype?

I have recently added a bottle of this to the Adblue tank.
I have no idea if it works to be honest.

www.forteuk.co.uk/product/exhaust-crystal-preventer

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[stevec]

I've been looking at the Wynns Adblu additive (Crystal Clean and Protect). I see they do a 125mL size and a 500mL which states for commercial vehicles. Presumably these are the same product?

 

[ceejayt]

I've been looking at the Wynns Adblu additive (Crystal Clean and Protect). I see they do a 125mL size and a 500mL which states for commercial vehicles. Presumably these are the same product?

I have to say I am very wary of adding anything if it is currently working without a problem

 

[Li150]

Top mine up approximately every 2000 kilometres/1200 miles. Prefer to keep it as full as possible rather than risk the light coming on. So far so good. Try to leave it full if not using it for extended periods.

 

[Bramidan]

I just follow the warning light and it takes 10 litres when I fill it up.
I might be naive but I figure the manufacturers know what they are advising!
Having said that I know nothing and just stumble along hoping for the best.

 

[Bonsaiman]

My only run in with Adblu so far, was a Merc company car when Adblu first appeared, the lease people told me to top it up every 2-2500 miles and try to not let it get low enough for the warning light to come on

Were they just being cautious or did they know something we don't?

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[VXman]

Dealer told me I’ll have a 1000 miles after warning light has come on.

I’m new to the world of Adblu and have just discovered some folks use an additive to prevent crystals forming in the fuel system - fact or hype?

In the fuel system? But adblue is not connected to the fuel system.

I just asked Google 'How does Adblue work?'

Heated in the exhaust, it decomposes into ammonia and CO₂. When the NOx from the engine exhaust reacts inside the catalyst with the ammonia, the harmful NOx molecules in the exhaust are converted to harmless nitrogen and water, which are released from the tail pipe as steam.

Where does 'crystals in the fuel system' come into this?

 

[seasideBill]

In the fuel system? But adblue is not connected to the fuel system.

I just asked Google 'How does Adblue work?'

Heated in the exhaust, it decomposes into ammonia and CO₂. When the NOx from the engine exhaust reacts inside the catalyst with the ammonia, the harmful NOx molecules in the exhaust are converted to harmless nitrogen and water, which are released from the tail pipe as steam.

Where does 'crystals in the fuel system' come into this?

No idea, probably talking b*******.

 

[ceejayt]

Just not directly in with the fuel. It injected in as you drive

 

[Spriddler]

Reminds me of Redex, still available but how many of us have experienced mechanical failure because they don’t use it?

True. I haven't, but I think it may be more to do with the improved quality fuels, oils and combustion control than were customary for the horseless carriages of yesteryear.

 

[dash300]

I just follow the warning light and it takes 10 litres when I fill it up.
I might be naive but I figure the manufacturers know what they are advising!
Having said that I know nothing and just stumble along hoping for the best.

My first fill after warning light came on was the same; took 10 litres and showed full. No dramas filling up from the forecourt bought container either, just poured it in and after a short wait with ignition on we fired up and off we went.

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[Teedubyaa]

I top ours up every 1000 miles.
I have never seen the warning light.
I assume you have a Peugeot?
If it was a Fiat it would have needed a top up before now.

I have a new Fiat and just passed 1500 miles - according to the gauge it is just over 2/3 full still ….

 

[Jimbohorlicks]

I have another 1600 miles so says the info on the dash. I have just bought five ltrs with a years shelf life.
Top up now and add to the older stuff in the tank, or wait a bit and top up when a warning comes on.?

Best to just top it up with your new blue. Dongcwait for a warning light to come on.

 

[pwilmo]

I waited for the light to come on and it took 10ltrs to fill.

No problem since.

However I was talking to my very experienced garage man about Adblue, he advised me to fill up to max every time .. before you do a long journey .. you've no need to wait for the Adblue warning light.

The work and repairs he has done for me, I highly value his real world advice.

I hope this is helpful for others.

 

[L' Hobo]

Wouldn’t it be nice if the standard Adblu formula included an ingredient to prevent that or is that naive? Reminds me of Redex, still available but how many of us have experienced mechanical failure because they don’t use it?

I still put a bottle of Redex (bought at Tesco's) into my full fuel tank twice a year!

 

[dash300]

I still put a bottle of Redex (bought at Tesco's) into my full fuel tank twice a year!

That wouldn't be by way of a Birthday and Christmas present would it?

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[Orion]

I’m certainly noticing that the Adblu consumption reduces when undertaking longish or non-start stop stints behind the wheel at reasonably constant speed - autoroutes or even RN. I’m guessing that when the engine and exhaust are up to temperature for a continuous period the Adblu requirement reduces? Between a dash warning to top up north of Burgos - 9 litres - and the chance to top off near Jerez via Portugal which took a paltry 3 litres it appears to be approaching 1ltr Adblu per 2k.

 

[Coolcats]

Now unless it’s a supersaturated solution I would imagine any crystallisation would just get absorbed by driving the vehicle as the liquid sloshes around.

 

[VXman]

Dealer told me I’ll have a 1000 miles after warning light has come on.

I’m new to the world of Adblu and have just discovered some folks use an additive to prevent crystals forming in the fuel system - fact or hype?

fact.
Even supermarkets sell it I was looking at a Goodyear anti-crystallisation bottle in one this morning

Wouldn’t it be nice if the standard Adblu formula included an ingredient to prevent that or is that naive? Reminds me of Redex, still available but how many of us have experienced mechanical failure because they don’t use it?

No idea, probably talking b*******.

Just not directly in with the fuel. It injected in as you drive

Now unless it’s a supersaturated solution I would imagine any crystallisation would just get absorbed by driving the vehicle as the liquid sloshes around.

OK - my research tells me adblue is not a fuel additive as it is injected into the exhaust gasses after combustion so doesn't go near the fuel system. So there will be no crystalisation there. Just another old wives tell from the anti adblue brigade I guess.

AdBlue®: what is it, what’s it made of, how does it work, and more

What is AdBlue®, what does it do, what is it made of, how does it work and how does it ensure your car performs efficiently and safely? Our guide explains all, plus more.

totalenergies.co.uk

 

[gus-lopez]

So there will be no crystalisation there. Just another old wives tell from the anti adblue brigade I guess.

The adblu system is independent of the diesel fuel system. It crystallises in the afblue tank.
When"fuelsystem"was mentioned WE all know that the adblu system was what was bring talked about. It should have been clarified for those who didn't.

 

[VXman]

w

The adblu system is independent of the diesel fuel system. It crystallises in the afblue tank.
When"fuelsystem"was mentioned WE all know that the adblu system was what was bring talked about. It should have been clarified for those who didn't.

Well I'm not sure how much people understand. It appears lots of people don't even realise its spelt AdBlue not Adblu.

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