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About LinkBacks....and are you finding the expense of it is nullifying the fuel savings of a modern diesel over an older one?
....and are you finding the expense of it is nullifying the fuel savings of a modern diesel over an older one?
Originally Posted by Advice Trinity by Knoxville
None. My petrol engined car is Euro 6 compliant without needing Ad Blue
But cost wise, no small improvement in running costs is going to nullify the increased purchase price/depreciation costs comparing to buying an older car
Wake me when anyone actually builds a Euro 6 compliant diesel. http://www.which.co.uk/news/2016/01/...-clean-430938/
I don't think your assumption that Ad Blue = New Engine holds for a lot of cars. If anything I'd think that cars that can meet the (nominal) emission standards without Ad Blue are more likely to have a newer engine design.
As for how much a car uses: Our big, heavy VW Sharan was recently filled up after the first 6,500 miles with a 10L can which filled most but not all of the tank (the car reckons that 10L is good for another 5000 or 5,500 miles).
Given that it's used approximately 700L of fuel, £10-15 for the Ad Blue isn't a big cost, an extra 2p per litre.
Whether it's saved £10-15 on extra fuel economy over the pre-facelift model with the older pre-Ad Blue engine revision is impossible to say as we didn't have one of them. There's been no big jump in fuel economy over older reports but with the small extra costs there only needs to be a slight improvement to off-set them.
Don't worry you won't need to worry in another three years!
That's if the ECU in your VW car actually tells your engine to use the adblue:
https://www.youtube.com/watch?v=xZSU1FPDiao
TLDR: VW set up the ECU only to inject adblue when the car was within a pre-defined profile (i.e. Emissions Test). The talk shows how they did it.
Xlucine (05-10-2016)
Interesting that they found so many petrol cars failing to meet CO standard, given that it's part of the MOT so presumably all those cars would fail when they hit 3 years old.
CO2 is directly proportional to MPG (burn hydro carbons in air, ideally get only water and CO2 out) - so fail to meet the advertised MPG and you'll fail to meet the advertised CO2 as well.
edit: and I misread! You said CO, not CO2, sorry. Yes CO bad, not ideal burning.
I honestly hadn't heard of Ad Blue before this thread, but my car is about ten years old.
Nor me - but again a ten year old car!
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It's a cute word for piss.
AdBlue is highly concentrated piss with dye in it.
They spray piss into diesel exhaust, to try & react the NOx in the fumes & form water, CO2, and Nitrogen.
Thanks, thought that was the case but glad somebody confirmed it before i posted.
*Edit* Always thought these eco blue engines were a piss take, now you have confirmed it!
Ditto, but then Italian cars don't seem to use the stuff so even if I was in the market for a new car I probably wouldn't have heard of it.
Well, someone at work had an old Pug diesel that used pee, I just didn't know it had a fancy name.
It does sound like something you are saying whilst holding your nose though, so good name
So you read urea and assumed piss, when a cursory glance at any info on Ad Blue will tell that it isn't? Even I learnt that in the 30 seconds I spent googling what Ad Blue was.
Urine is, essentially, a dilute form of urea. It contains some other trace compounds/elements/salts too, but the primary constituent after water is urea. Calling Ad Blue concentrated dyed piss is about as good a layman's description as you can get. It might not be how its created, but the chemical outcome is basically the same.
Urea is colourless, odourless and neither acidic no alkaline - oh, and pretty much non toxic.Ditto, but then Italian cars don't seem to use the stuff so even if I was in the market for a new car I probably wouldn't have heard of it.
Well, someone at work had an old Pug diesel that used pee, I just didn't know it had a fancy name.
It does sound like something you are saying whilst holding your nose though, so good name
It plays in important role in nitrogen metabolism, and is chemically related to ammonia. It is a feedstock for some plastics, noticeably those used for light fittings, which give off a distinctive smell when the plastic starts degrading bfrom the heat of the lamp! (But that smell is from the breakdown products, not from urea itself).
https://en.m.wikipedia.org/wiki/Urea
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