when I passed my test the walkround checks were not part of it and the preshift checks I do are self taught, no one has ever shown me what to do
Yet another example of high quality training then!
Pete 
Peter Smythe:
Urban myth is that itās a derivative of pig pee; Iāll leave that one with you.Trucks from 7.5 onwards may have it. Some have an alternative system to deal with emissions so donāt worry if you cant find it near the fuel tank.
It is actually urea in purified water (urea is what you pee out. Itās derived from uric acid, made in the liver, and also highly toxic. Urea is just not quite as bad).
Also some cars may have it as well. And btw, Mercs have an AdBlue gauge in blue round the fuel gauge (with 4 sections, or the Atego I drove yesterday did anyway).
htmldude:
Peter Smythe:
Urban myth is that itās a derivative of pig pee; Iāll leave that one with you.Trucks from 7.5 onwards may have it. Some have an alternative system to deal with emissions so donāt worry if you cant find it near the fuel tank.
It is actually urea in purified water (urea is what you pee out. Itās derived from uric acid, made in the liver, and also highly toxic. Urea is just not quite as bad).
Also some cars may have it as well. And btw, Mercs have an AdBlue gauge in blue round the fuel gauge (with 4 sections, or the Atego I drove yesterday did anyway).
Urea and deionised water is what it is ( ~38% solution if memory serves), urea is pretty harmless stuff, used widely in agriculture as a feed additive, fertiliser and some other things ( usually at a lower concentration, Iāve not sprayed at over 6% - which was to promote leaf rot to reduce apple scab over-wintering on orchard floors).
Thereās no stipulation as to if it has to be synthesised or can be extracted from waste, just the standards of purity that have to be met so it doesnāt screw up other parts of the emissions control equipment, theoretically pig or cow pee could be processed to extract it, then diluted, though I suspect synthesis would be cheaper.
As for what itās used for, specifically, itās to eliminate oxides of nitrogen, which werenāt dealt with as well or at all with earlier standards than Euro6.
Expect to see it used on pretty much most/all diesel engines as the rules tighten up, they just started with trucks as the most effective place to require it first. Itās not the only way to meet the standards, just the cheapest, so theoretically you may encounter something new that doesnāt use it.
eagerbeaver:
Paul. Enough van talk mate. A man who drives a TGX should know better.Lol!
TGX XXL, and donāt you forget it 
Haha-ive been using a scania TOPLINE for the last few days. Funny how important size is to us lol.
martinviking:
Muckaway:
I donāt know if this really works, if it does then why doesnāt everybody do it?Because in the words of the Judas Priest Song- itās Breaking the Law.
Question on a Webb site -
If I drive a vehicle without AdBlue[emoji768] am I breaking the law?
Yes. Exceeding maximum emissions runs the same risk whether the system is SCR or EGR.
Iāve heard a vehicle can still pass itās MOT for emissions though, and the only thing adblue thatās checked is the light that comes on when you turn the key.
If thatās the case, Iād rather take a chance on that than going to the dealers every few months with stupid problems. Actually Iād rather not have adblue full stop but then Iām probably a selfish git for not āthinking greenā enough to worry about the planet etc?
Very hard to be eco friendly when countries with huge populations like India, China and the USA donāt give a monkeys about what theyāre churning into the atmosphere.
I still remember all the hype about global warmingā¦ what a load of crap! since 2003 we havenāt had a half decent summer, so now its climate changeā¦ make up your ā ā ā ā ā ā ā minds.
I remember hearing on the news a while back,that the UKās total co2 output was 2% of the worlds total.
As said by others,its the big players that need to get a grip.
Which reminds meā¦where did I leave that 'special DVD 'ā ā
jbaz73:
I realize this is a question you would expect from a newbie, but when I passed my test the walkround checks were not part of it and the preshift checks I do are self taught, no one has ever shown me what to do or checked up on me.I keep seeing adblue mentioned on the other boards and wondered what it was and if its something that needs checking or is it something exclusive to artics?
tin hat firmly on, flame away, but its a serious question.
Nice to see the training regime are on top of the gameā¦
Some of us are!
Pete
I wasnāt even taught the proper checks when I did cat d. the walkround checks were; check the wheelnut pointers and see if the bus has been torn open in any way, hence dangerous bodywork. they didnāt even cover the oil and water, on my first day doing the job I spent half an hour trying to figure out how to open the bonnetā¦ then someone had to show me!
I was in the arriva training school for 3 weeks, we only did the preshift checks twice and then I was on 2-10 shift so they could train twice as many drivers, the instructor never bothered with the checks because they had already been done by the morning shift. production line training 
really the checks should have been covered on my hgv training, the instructor did the checks in the morning before I got there. I would have asked, but I didnāt even know there was such a thing as daily checks when I was training. in fact for my first few weeks on the job I just got in and drove with no checks at all. it wasnāt till I got a full time job at tawny transport which was double manned that I learned what checks needed doing.
jbaz73:
I still remember all the hype about global warmingā¦ what a load of crap! since 2003 we havenāt had a half decent summer, so now its climate changeā¦ make up your [zb] minds.
The clue is in the word āglobalā (as opposed to ālocalā or āUK specificā).
arriva train hundreds of drivers nationwide, I wonder how many donāt know about preshift checks? at our garage most of the drivers just got in and went, it wouldnāt surprise you to know the buses all kept breaking down as they were virtually falling apart.
the bit I was shocked by was at the training school, the examiner was employed by arriva. you got 4 attempts at the test, then you were out. I donāt know a single person who was kicked out.