XF 3.0 V6 - Euro 5 vs Euro 6

XF 3.0 V6 - Euro 5 vs Euro 6

Author
Discussion

timskipper

Original Poster:

1,305 posts

280 months

Sunday 4th May
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At some point the 3.0 V6 diesel engine in the XF went from Euro 5 to 6. Does anyone know what material differences there are between the two units, and if there's any specific reason to avoid one or the other?

fatboy b

9,637 posts

230 months

Monday 5th May
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Oil dilution can be an issue on euro 6. So, check any service history for evidence of more than normal oil changes.

Rich1973

1,233 posts

191 months

Monday 5th May
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Within the same model or different models? Do you know ow the years? Up to 2015 is x250 and 2015 onwards is x260.
Look similar but different cars. The later has ad blue.

Wicker Man

848 posts

257 months

Monday 5th May
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Reading elsewhere, it seems that for a diesel engine to meet Euro 6 reg’s, a Selective Catalytic Reduction system (aka adblue) is required. Personally, I’d rather go without the extra complexity, hassle and cost.

ruhall

552 posts

160 months

Monday 5th May
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As above, agreed. However, it might depend where you intend driving if access to low emission zones are a consideration.

GeniusOfLove

3,438 posts

26 months

Tuesday 6th May
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If you want an X250, the first gen car, you get a Euro 5 diesel and if you get an X260 you get a Euro 6 so that's a big factor too.

Don't think the E6 diesel is super troublesome in the X260 like it can be in the older platform cars but I'd half the oil change intervals.

Personally I'd rather have fleas than a diesel with SCR.

timskipper

Original Poster:

1,305 posts

280 months

Wednesday 7th May
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Thanks all. My budget is around 15k and I'd prefer < 50k miles, and although I'd prefer not to have a diesel the V6 does seem to be the one everyone raves about and they seem to go well. Possibly precludes the X260 model in that case.

fatboy b

9,637 posts

230 months

Thursday 8th May
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timskipper said:
Thanks all. My budget is around 15k and I'd prefer < 50k miles, and although I'd prefer not to have a diesel the V6 does seem to be the one everyone raves about and they seem to go well. Possibly precludes the X260 model in that case.
If you get a decent one, the X250 is a better car.

timskipper

Original Poster:

1,305 posts

280 months

Tuesday 27th May
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I’ve found a 2012 facelift V6 diesel locally that’s priced well and only 64k miles. Has had turbos replaced by Jaguar two years ago and cambelt last year.

Anything to watch for here? Looks very clean, Portfolio S with Meridian

GeniusOfLove

3,438 posts

26 months

Tuesday 27th May
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timskipper said:
I’ve found a 2012 facelift V6 diesel locally that’s priced well and only 64k miles. Has had turbos replaced by Jaguar two years ago and cambelt last year.

Anything to watch for here? Looks very clean, Portfolio S with Meridian
See if you can have a poke under the plastic sill covers for corrosion and take a good look underneath at the rear subframe. They're knocking on now and while not as given to corrosion as the S Type I have seen rusty ones that have lived in Scotland.

Drive it hard enough to make sure the 2nd turbo cuts in at (I think) 3.5k RPM, you don't really need to rev them out to make progress so often the valves in the inlet and exhaust seem to get sticky with lack of use. Sitting in a stream of filth from a diesel engine won't help!

Other than that usual old car things, make sure all the toys work, listen for knocks and groans and creaking. Hope the car checks out!

J4CKO

44,198 posts

214 months

Tuesday 27th May
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Didnt know they were sequential, just thought it was one per bank but they are indeed.

I think the service intervals dont help, 16,000 miles between oil changes on a dirty diesel.

I bought my XJ (Same engine) as its had ten services at Jaguar in 34,000 miles, can never be 100 percent sure but its never been more than 4k between oil changes. I am going to do it yearly, possibly twice for what it costs.

Mine was from Scotland (Edinburgh) and can attest to what GOL is saying about subframes, got it up in the air and had a look, definitely getting crusty so wire brush and a load of underseal over it should stem it, its literally just the subframe where it gets wet, rest was perfect, XF's being steel can rust quite badly in places as well.


Euro 6 is risky on the XJ, various issues requiring a new engine, XF seems to avoid it, think thats the case isnt it GOL ?

Edited by J4CKO on Tuesday 27th May 18:53

GeniusOfLove

3,438 posts

26 months

Tuesday 27th May
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I'd certainly do it yearly or every 8k miles, possibly more if you are town driving. SDD can actually tell you the calculated oil dilution level somewhere.

The earlier and much more disappointing 2.7d were regular parallel turbos. Given the complexity of the sequential system the plumbing seems to give surprisingly little trouble, just don't go looking at a picture of it.

If I was doing limited miles in a dirty diesel I'd be inclined to run it on the Shell super diesel. It is at least in part made with gas to liquid derived fuel which creates materially less soot when burned and I believe it has a higher cetane level so should be a touch quieter and cleaner again. They don't specify how much is GTL and it might be 5% for all I know but it's worth a try.

If you're doing 25k a year it might not be viable cost wise but if you're doing a few thousand I certainly would.

timskipper

Original Poster:

1,305 posts

280 months

Tuesday 27th May
quotequote all
I do about 8-10k miles a year, most journeys are 40 mins so certainly enough to get it warmed up. The guy has done a walk-round video for me, it's very tidy. £6k seems like good value for it.

GeniusOfLove

3,438 posts

26 months

Tuesday 27th May
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For a Portfolio S on those miles that's a really decent price, I assume private not retail?


GeniusOfLove

3,438 posts

26 months

Tuesday 27th May
quotequote all
J4CKO said:
Euro 6 is risky on the XJ, various issues requiring a new engine, XF seems to avoid it, think thats the case isnt it GOL ?
Not as bad as on some of the LR models I think, JLR issued a bulletin that rated how much of an issue it was for each platform and I think the X351 was in the middle.

I think if you use an XJ the way a big barge is meant to be used it'd probably be fine, but because diesel was the only real option people bought them to do 3k a year to the golf club and waitrose. I've certainly seen a fair few 300bhp X351s being sold as non runners with dead engines, which is really quite rare with the 275bhp Euro5 diesel.

THe X250 XF never got the Euro6 diesel only the plain jane X260 follow up model that nobody likes. You'd have thought that platform would have been designed from the ground up to properly accomodate the emissions kit, but all these Euro6 diesels seem to have plenty of potential for trouble.

Shame the NASP 5.0 XFs are so rare here, it's a fantastic engine. I once saw a facelift 5.0, there is a chap on here who had one too I think and said it was a factory order job for a bit before the 3.0 S/C took over in 2013.

timskipper

Original Poster:

1,305 posts

280 months

Tuesday 27th May
quotequote all
GeniusOfLove said:
For a Portfolio S on those miles that's a really decent price, I assume private not retail?
Yes private sale. Timing chain is done, brakes and pads replaced last year. Service is due next month but I think from what I've read I probs would have just had one done anyway.

GeniusOfLove

3,438 posts

26 months

Tuesday 27th May
quotequote all
timskipper said:
GeniusOfLove said:
For a Portfolio S on those miles that's a really decent price, I assume private not retail?
Yes private sale. Timing chain is done, brakes and pads replaced last year. Service is due next month but I think from what I've read I probs would have just had one done anyway.
They're dead easy to service, they have a tube in place to suck the oil out with an extractor and the filter is on the top to change. It's literally a 5 minute oil change, 4 minutes of which are spent drinking tea watching the oil get sucked out. Air filters are easy too, can't remember where the cabin filter is.

Definitely one you can DIY if you want to do half interval oil changes etc.

J4CKO

44,198 posts

214 months

Tuesday 27th May
quotequote all
GeniusOfLove said:
J4CKO said:
Euro 6 is risky on the XJ, various issues requiring a new engine, XF seems to avoid it, think thats the case isnt it GOL ?
Not as bad as on some of the LR models I think, JLR issued a bulletin that rated how much of an issue it was for each platform and I think the X351 was in the middle.

I think if you use an XJ the way a big barge is meant to be used it'd probably be fine, but because diesel was the only real option people bought them to do 3k a year to the golf club and waitrose. I've certainly seen a fair few 300bhp X351s being sold as non runners with dead engines, which is really quite rare with the 275bhp Euro5 diesel.

THe X250 XF never got the Euro6 diesel only the plain jane X260 follow up model that nobody likes. You'd have thought that platform would have been designed from the ground up to properly accomodate the emissions kit, but all these Euro6 diesels seem to have plenty of potential for trouble.

Shame the NASP 5.0 XFs are so rare here, it's a fantastic engine. I once saw a facelift 5.0, there is a chap on here who had one too I think and said it was a factory order job for a bit before the 3.0 S/C took over in 2013.
Yeah, my usage is not ideal for a barge but I endeavour to do my shorter runs in my Fiesta, the wifes TT or by bike.

Its had a couple of hour long runs the last few days and then will likely sit unused for a few days now.

Att he end of the day, you would never do anything if you worried about it too much, siteen grand is a chunk of cash but in the scheme of things its not huge in car terms.

Now got to sort that thing rolling about in the centre console.

timskipper

Original Poster:

1,305 posts

280 months

Wednesday 28th May
quotequote all
Bought it


Glasgowrob

3,288 posts

135 months

Wednesday 28th May
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Great cars

Both myself and my dad ran 3.0d X250s out big miles
On both

Now get it mapped best in the business for the jag diesels is Tony Dalton at Delta Performance.

Minor niggles with the electrics are communal place
As is the inlet manifolds but their easy to DIY and all the
Common problems are well documented