Just thought it worth sharing my latest DPF figures, just for comparison.

I have just returned from a few days in North Wales, basically 125miles motorway each way with a couple of local stop start mid way.
Home 17.5g
LLanberis 19.0g

So 1.5 g increase in 125 miles.
Local stop/start ( 4miles) 19.4g
Return trip
Peaked at 19.5g
Down to 2.1g soon after joining A55 (70mph dual carriageway)
4.7g back home.

Click image to enlarge

Have you ever had a yellow DPF light come up? Just wondered why you’re worried about monitoring the numbers?
Did you go to Petes Eats for a fry up? I grew up very close to Llanberis  Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
--------------------------------------------------

Rob,
I have never had a DPF warning light of any colour, but I do a lot of local stop- start trips and like to know when it’s getting over 17g so that I can plan a good burn trip.

No I didn’t go to Pete’s Eats, but my daughter has just moved into a new house a few yards from it , so will be visiting regularly and will no doubt give it a try.
We did a brilliant walk yesterday afternoon ,in glorious sunshine, all the way around Llyn Padarn.
It has got its ups and downs on the far side., but well worth the effort.
Mike. G reg 2.5VM Vogue Portofino red 1991- 1999
V reg 2.5td P38 Rioja red 1999- 2006
53 reg td6 Vogue Oslo blue 2006- 2015
11 reg 4.4 TdV8 Vogue SE. Baltic blue 2015- date.
https://www.fullfatrr.com/forum/topic56162...tty+affair

Gotcha
I got off the A3 a few days back and it really smelt hot. It’s a very distinctive odour. IID showed soot was very low (1.9g I think) so I reckon it had just done a nice big burn 🔥🔥👍 Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
--------------------------------------------------

The exhaust temp was showing 625-630 deg for over 5 miles, which is pretty hot
Mike. G reg 2.5VM Vogue Portofino red 1991- 1999
V reg 2.5td P38 Rioja red 1999- 2006
53 reg td6 Vogue Oslo blue 2006- 2015
11 reg 4.4 TdV8 Vogue SE. Baltic blue 2015- date.
https://www.fullfatrr.com/forum/topic56162...tty+affair

Mike, what are you using to interrogate the ECU to give that level of data?

He's using a GAP iiDtool 2011 (MY12) 4.4 TDV8 Vogue
2016 Golf GTI PP

Gone
Audi A4
VW Passat
VW Corrado G60
VW Golf GTI
BMW E30
Mini
Vauxhall Chvette

I have my iPad mini Bluetooth connected to my Gap iid and select the relevant live values, then just take screen dumps to keep a diary.
Mike. G reg 2.5VM Vogue Portofino red 1991- 1999
V reg 2.5td P38 Rioja red 1999- 2006
53 reg td6 Vogue Oslo blue 2006- 2015
11 reg 4.4 TdV8 Vogue SE. Baltic blue 2015- date.
https://www.fullfatrr.com/forum/topic56162...tty+affair

I do both short trips and long trips (for example today did about 60mls each way)but seldom went over 70mph which means the revs were only about 1300 will this still do "the burn"? Geoff

⬆️Yes as long as its above approx 50mph for 10mins plus👍

Yes, but you should also regularly rag it above 2500rpm to get the second turbo working and clear the crap out of the engine. Nothing to do with DPF but such a lazy engine they rarely get the taps opened up fully  Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
--------------------------------------------------

Geoff,
Speed is not important, nor are revs... just keeping a steady throttle setting is though.
If you can set the cruise control to 60mph on a motorway run for 10- 15 minutes ( miles) passive regens will keep your soot levels down, but when they get over 19g then the car will activate an active regen where fuel is injected and burns in the DPF, bringing the temps to 620-30 c and the soot level falls rapidly into single figures down to 2-3G.
It’s a bit addictive watching it happen, but I have got to know exactly how my car is doing, so once it gets down low I ignore it for 2-3 weeks before monitoring it again.
Mike. G reg 2.5VM Vogue Portofino red 1991- 1999
V reg 2.5td P38 Rioja red 1999- 2006
53 reg td6 Vogue Oslo blue 2006- 2015
11 reg 4.4 TdV8 Vogue SE. Baltic blue 2015- date.
https://www.fullfatrr.com/forum/topic56162...tty+affair

Sounds good to me,

How do you define as rag it? a nice country lane making use of the paddles and keeping the revs above 2500 ? or finding a nice "private" road that high speed can be maintained? For either how long for?

Cheers

Baltic Blue wrote:

Geoff,
Speed is not important, nor are revs... just keeping a steady throttle setting is though.
If you can set the cruise control to 60mph on a motorway run for 10- 15 minutes ( miles) passive regens will keep your soot levels down, but when they get over 19g then the car will activate an active regen where fuel is injected and burns in the DPF, bringing the temps to 620-30 c and the soot level falls rapidly into single figures down to 2-3G.
It’s a bit addictive watching it happen, but I have got to know exactly how my car is doing, so once it gets down low I ignore it for 2-3 weeks before monitoring it again.
Mike.

DrRob wrote:

Yes, but you should also regularly rag it above 2500rpm to get the second turbo working and clear the crap out of the engine. Nothing to do with DPF but such a lazy engine they rarely get the taps opened up fully

Yep, I do that using the paddles to knock it down a few gears on the motorway as this forum has made me paranoid about not having done the Turbo Drain Mod. Geoff