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mlambton



Member Since: 20 Apr 2024
Location: Devon
Posts: 22

United Kingdom 
Advice and views on a D300 and DPF's
Hi

Im getting close to chosing my next vehicle. For the last few years ive had a 2015 SDV8 rangerover. About 50% of my annual 12000 miles is under 5 mile trips. My worry with an L663 D300 is whether I wil have problems with the Diesel particulate filter (DPF) clogging.

I would say that my current Rangerover hasnt had an issue (though many have) and I accept i need to change the engine oil and filter every 6 months currently due to the dilution effects on the engine oil from the failed regenerations.

Any perspectives would be appreciated
Post #1035738 26th May 2024 3:09pm
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nebc100



Member Since: 07 Nov 2023
Location: Altlinster
Posts: 97

Luxembourg 
My personal opinion is that I would not touch a diesel if I were doing so many short trips.

That is why I went for the P400
Post #1035743 26th May 2024 3:50pm
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BrickBox



Member Since: 05 Oct 2021
Location: Wales
Posts: 833

Wales 2008 Defender 110 Puma 2.4 USW Zermatt Silver
I don’t think these modern diesels are worth the hassle.

Go for a petrol. 2008 2.4 110 Utility Station Wagon XS.
Post #1035746 26th May 2024 4:28pm
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martinf



Member Since: 30 Nov 2020
Location: Sussex
Posts: 99

United Kingdom 
I agree with changing to petrol. I had a 2015 Range Rover and found the endless oil changes because of oil dilution expensive and tiresome.

Much happier with my P300 Defender.
Post #1035750 26th May 2024 5:18pm
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lightning



Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2823

United Kingdom 
l've got a new Defender D250

A lot of my driving is short journeys and l've had no issues at all with it. Occasionally l've noticed it regenerates the DPF (the idle speed is slightly higher)

l've had no oil dilution, the oil has been checked and replaced twice. l think the D250/300/350 six cylinder lngenium engine is designed better with regards to the DPF.
Post #1035753 26th May 2024 5:53pm
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DFNDER



Member Since: 02 Oct 2023
Location: Perth WA
Posts: 132

Australia 
It's the reason I went to P400 as well. DPF, adblue, EGR, frequent oil changes, oil dilution etc was enough to put me off diesel.
Post #1035772 26th May 2024 11:36pm
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mlambton



Member Since: 20 Apr 2024
Location: Devon
Posts: 22

United Kingdom 
Thank you for your perspectives they are much appreciated.
I think Im tending towards the petrol P400e option. The fact that many of the major manufacturers are ditching the Diesel option and UK cities are increasingly ramping up the amount of low emission zones also nudges me further towards the petrol hybrid option.
Post #1035780 27th May 2024 7:31am
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Soup Dragon



Member Since: 22 Sep 2023
Location: Cheshire
Posts: 86

 
DPF is definitely a pain. You can be 20-30 mins into a longish run and then without warning (no lights on dashboard), the mpg halves for maybe 5 minutes (you can see this clearly on the instant mpg display) until DPF clears. This happens to me on almost every journey and puts a circa 10% dent in my fuel economy. I’m going to ask the dealer about whether this is normal when it goes in for a service but that won’t be for a while. This has never happened on any adblue equipped diesel car I’ve ever owned.
Post #1035781 27th May 2024 7:33am
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Zed



Member Since: 07 Oct 2017
Location: In the woods
Posts: 3306

United Kingdom 2010 Defender 110 Puma 2.4 XS CSW Santorini Black
BrickBox wrote:
I don’t think these modern diesels are worth the hassle.

Go for a petrol.


I agree. Given a choice it’s a no brainier. WARNING.
This post may contain sarcasm.
Post #1035783 27th May 2024 8:04am
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Moo



Member Since: 01 Oct 2021
Location: UK
Posts: 1394

Ukraine 
My D250 does mixed driving but have never noticed the DPF regenerating. Confused Eiger Grey MY23 D250 SE with bits. Known as Noddy.
Post #1035790 27th May 2024 9:06am
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J77



Member Since: 04 Nov 2019
Location: Fife
Posts: 3403

Scotland 
The only way I know mine is going through a regen is the more throaty exhaust note, can’t say I’ve noticed a significant drop in fuel economy. 24MY 90 D250 HSE, Tasman Blue
Post #1035840 27th May 2024 6:51pm
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lightning



Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2823

United Kingdom 
Same here, DPF regenerates occasionally and after 12,500 miles the Adblue is still saying 5,000 miles remaining.

When the DPF regenerates l notice a drop in the instant fuel economy readout for a few minutes. But it certainly doesn't happen every journey.

ln city driving l get 26-28mpg and on a longer run around 40mpg.
Post #1035843 27th May 2024 7:03pm
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lightning



Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2823

United Kingdom 
Zed wrote:
BrickBox wrote:
I don’t think these modern diesels are worth the hassle.

Go for a petrol.


I agree. Given a choice it’s a no brainier.



lt depends on what you are using the vehicle for. l couldn't live with under 20mpg. l also prefer petrol over diesel but l had a petrol version on loan and managed 18mpg with my kind of use.
Post #1035844 27th May 2024 7:06pm
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mlambton



Member Since: 20 Apr 2024
Location: Devon
Posts: 22

United Kingdom 
I’m thinking that the p400e would be a better option over diesel given half my mileage would be daily short trips of 3-4 miles each way. I think this type of driving is probably the worst profile for a diesel and may be the PHEV sweet spot?
Post #1035853 27th May 2024 8:36pm
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lightning



Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2823

United Kingdom 
You're probably correct as with those short journeys you'll probably be on electric power and won't use any fuel at all.

As l said, everyone is different. l tow a caravan and can still achieve over 25mpg with my D250. The Commercial version is only available with the MHEV diesel
Post #1035857 27th May 2024 9:09pm
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