MOT Emissions Fail

[Mike Noc]

You don't need to be an expert to understand the test criteria for diesels Mike - it is simply an opacity test for smoke.

Why not post up the details of this device you have discovered, and then we can have an informed debate on whether or not it could be effective, or if it was just coincidental that your car passed with it fitted.

You say you bought these devices - how many have you got?









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[Rogue]

Originally Posted by Mike523152

Some interesting comments. Not going to get into an argument with anyone over this or as to whether I post or don't post on these forums, although I do find the information provided on here extremely useful keeping my car on the road, I've saved a lot of money carrying out repairs etc. which I would have otherwise had to get done in a garage, so I'm grateful to everyone who contributes.
As for this device it doesn't matter to me whether people buy it or not, as I mentioned in my original post, I bought these devices for a completely unrelated project and it was only when my car failed it's MOT I thought it was worth trying to see what, if anything in did. The figures I posted are taken direct from the MOT certificate, copies can be accessed via this link

https://documentcloud.adobe.com/link...a-4cb1e7fbcbf5

I actually thought it might be helpful to anyone that has had a problem with emissions on their MOT. As for the MOT test itself, not my field of expertise perhaps if there are any experts out there that understand the test criteria they make like to comment accordingly.

And yet you still fail to post what exactly this "device" is that gives these miraculous results?? Why so secretive? Why not just link to the "device"?

[Mike523152]

http://www.supertech.it/en/supertech...ct-description

Link to manufacturers website above.

[grivas]

Originally Posted by Mike523152

Took my Rover 75 2.0 Diesel in for it's MOT last Thursday, it failed on emissions with an average reading of 3.67 1/m, absolutely no idea what this relates to but the test applied was "Turbo (LIMIT: 3.00 1/m).
I asked the chap at the test centre what did this mean, I understand NOx, Particulates, Hydrocarbons etc. but how did this equate to these test readings, were particulates too high, NOx etc. without knowing that it's difficult to work out a solution. Anyway, I had a few ideas, fill up with Shell V Power Diesel as it contains GTL - Gas to Liquid fuel which is a lot cleaner than regular diesel and topping this up with a fuel additive would help, but would it be enough!
There was however something else I could do, last year when looking at emissions reductions technologies for my business I came across a device that you simply suspend in your tank that claimed to reduce emissions, improve performance and reduce fuel consumption, so I bought a few samples with a view to conducting a few tests on generators, trucks etc., never got round to fitting one in my Rover! Well on Thursday afternoon I did and took the car for a retest yesterday afternoon, results were significant, the test applied this time was Plate Value (LIMIT: 1.00 1/m) No idea why the different test, but the result was 0.97 1/m compared to 3.67 on Thursday consequently it passed it's MOT.
There must be a lot of people out there confused by these new tests especially when your car fails and the MOT Test centre tells you to take your car to a DPF specialist to have it checked out and repaired and nothing else, you know it's not going to be cheap.

I am not sure whether this device is Snake Oil or the Holy Grail, but I can't really see what else could have made such a significant improvement in the test results. If your having problems with emissions and want to know more drop me a message and I might be able to help.

You must take us for fools mate, a lot of BS in my opinion, a well maintained diesel 75 will pass MOT without even breaking into a sweat, follow Arctic's advice, will be OK, as for devices ....etc as I said a lot of BS.

[SCP440]

In my experience a lot of diesel cars that fail there MOT on Emissions will pass once they have had a good run. 20 or 30 miles on a motorway at the legal limit is usually enough.

For good measure I usually put some injector cleaner in before the run and 9 out of 10 pass easily.

If the car that is being tested has only done 6000 miles or less since the last test it is probably used for short runs so a good run is probably well overdue.

[marinabrian]

In far 1988, our Group was already seeking for an ecologic product, SINCE during the last 100 years mankind had polluted the EARTH as never had been done in the previous 100.000 years, therefore now had come the time to start un-polluting.
In 1996 - SUPER TECH PROJECT begins.
In 2006 - its CREDIBILITY phase had been completed.
In 2008 - the TRUE worldwide commercialisation phase begins THANKS to the strong CREDIBILITY obtained through tests and test reports issued by OPINION LEADERS from 23 different COUNTRIES.

‘It is not the earth that belongs to man; it is man that belongs to the earth.
All that happens to the earth will happen to the children of the earth’.

I quote from their website, however I can still remember other such treatment and miracle whizzes from years ago, and they are just as nonsensical.

What tends to cause issues with cars that otherwise exhibit excessive particulate emissions, are sooted up exhaust systems, this of course prior to presenting for test can be reduced dramatically by a high speed run in a low gear.

I quote from my own MOT emission report


Smoke reading Peak 1 = 0.07m-1

Zero Drift = 0.04 m-1

Average = 0.03 m-1

From a plated limit of 1.25 m-1

Anything with figures that exceed even the "no plate" default figures of 2.5 m-1 for non turbo, or 3.0 m-1 for turbocharged cars first used before 2008 must have lumps of coal dropping from the tailpipe, of have serious engine problems.


Anyway, back to the original "wonder" pellet, it's yet another in a long line of complete rubbish, intending to separate the gullible from their money.

Brian

[markypicks]

Originally Posted by Arctic

I have reiterated this a few times over the last year or so to try and combine your full service on your car the same week or the week before your MOT is due.

Change all filters, air, PCV, oil, & fuel filter & dropping in some forte, and the most important part make sure your manifold as been cleaned out, along with your EGR & MAP sensor, take your car on at least a 5-10 miles run before the MOT time on the day giving it a good thrashing in each and dropping it down a few times, ie an Italian tune up, the engine should be nice and hot and up to temperature when you arrived at your pre-booked time of MOT, it should pass quite easy if the above is followed if not then something else is wrong.

No use the MOT Test centre telling you to take your car to a DPF specialist to have it checked out and repaired as our cars do not have a DPF.

PS drop a bottle of this in your tank at least three times a year, one a week before your MOT is due.
https://www.ebay.co.uk/itm/222076086571

just purchased 2x bottles of this . should be here within the week so ill see how it goes rgds mark