DPF Regen, Yellow Light & Adblue - Whats It All About? -

[whodat]

Completely agree.
I end up driving at 70mph in 4th (3000rpm) for at least half a long journey to give it a blow out.
Shouldn't be that way.
Although, when I did experiment a little, there wasn't that much in it driving at 70mph in 4th and and in 6th gears in fuel consumption. However, when driving at 60mph - that is a sweet spot economically - but as you said, soots up the engine.
It was the same on my old diesel van (2000 registration). Although it didn't have adblue and eco advanced stuff, if I drove at 60mph in 5th gear on a long journey just before the MOT it would fail on emissions. So had to give it a half hour blast up the motorway at 3000rpm (60mph in 4th gear) to pass MOT on retake which ended up costing the same amount of fuel as if I had just done the long journey at 70ish.

 

[Strettyp]

To add to this I have only used shell vpower for its entire life - I can only imagine it would be worse with standard fuel

 

[Bav]

Surely the device to help the environment is complete bollocks...

Except it isn’t designed to "help the environment", it's designed to meet the emmissions regulations - a different objective entirely!

 

[Strettyp]

I get the bit around stopping clouds of black soot being pumped out the back but make it work at an economical engine speed

 

[whodat]

Yes - big difference between emissions and economy.
I won't keep on harping on but the 25 year old van gave more mpg than this clean 2 year old van. Just different crap comes out the exhaust. Whatever the favourite demon is at the time is the target - right or wrong doesn't matter. Just 'is'.
Also I only use the premium pump with 2x detergent or whatever crap they get away with. As if a teaspoon of whatever they put in costs 20p! but it makes me feel better. Also pissed off and angry, but better in some ways.

 

[Bav]

I get the bit around stopping clouds of black soot being pumped out the back but make it work at an economical engine speed

I think you may have misunderstood my point.

What I was trying to say was that it's the emissions regulations themselves that are the problem. As they have been framed, VW have been able to conform to the letter of the regulations whilst ignoring the spirit of the regulations. In fact, it could be argued that the haste of the regulatory changes have necessitated all manufacturers to do this - they were simply not allowed the time to complete a reasonable engineering R&D lifecycle before the changes came into effect, hence half-baked solutions resulted.

 

[Strettyp]

Ah right - yeah it does seem really half arsed as the dashboard is telling you to change up to 6th as soon as you get into the mid-50's which is the DPF clogging zone

It is what it is but having to do a hot lap frequently to keep the engine in good running order is silly

 

[Bav]

Ah right - yeah it does seem really half arsed as the dashboard is telling you to change up to 6th as soon as you get into the mid-50's which is the DPF clogging zone

It is what it is but having to do a hot lap frequently to keep the engine in good running order is silly

Silly indeed and having to go on blasts down the motorway for no good reason renders any mpg figures achieved utterly meaningless.

 

[Dellmassive]

Loving the Carista Evo dongle and the VAG DPF app.

You can leave the new Caristar Evo dongle connected all the time, so it's super easy just to jump on the VAG DPF app when it starts to regen with the engine rev slightly increased.

The van Seems to be doing a Regen every 80odd miles.... And takes around 30mins

.


.

 

[mmi]

The van Seems to be doing a Regen every 80odd miles..

Well, 418 minutes since the last one, so the average speed has been less than 11 miles/hour

 

[Skyliner33]

Well, 418 minutes since the last one, so the average speed has been less than 11 miles/hour

Welcome to the UK traffic flow.

 

[Dellmassive]

Loving the Carista Evo dongle and the VAG DPF app.

You can leave the new Caristar Evo dongle connected all the time, so it's super easy just to jump on the VAG DPF app when it starts to regen with the engine rev slightly increased.

The van Seems to be doing a Regen every 80odd miles.... And takes around 30mins

.
View attachment 275375

.

Here is the midpoint and the endpoint, started at 1350hrs and ended at 14 30hrs

..


And this is my daily commute....


.

 

[Dellmassive]

As @mmi said it stops at 6mg even though the percent bar shows 24%.


. And 100% shows around 25 mg. (Calculated)