Citroen XM Forum

Some of you may know I bought a new car a couple of weeks back, very nice it is too. But after covering just 940miles I noticed the oil was way, way overfull. Now from the off I knew this was a PDF issue, being too gentle with the right foot no doubt which is true to an extent but at 650miles on the clock it was taken for a good run up the M3 at........ a good lick. Well it turns out it is a normal part of service according to the dealer and so it would seem my first oil change on abrand new vehicle with 15k service intervals is going to be done tomorrow, at 1008 miles.
Aren't new cars Awesome! Lol

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Mine don't seem to suffer with DPF clogging...

New engines are more susceptible due to blow by. Too light a right foot will cause problems with any new diesel, give it full load to settle the rings, otherwise you will suffer bore glazing.

Mine don't seem to suffer with DPF clogging...

nobody likes a smart arse Will

Im not THAT soft on it anyway! and as i pointd out to the dealer how do you thrash a vehicle on roads that have a max speed limit of 40mph? you should be able to drive a derv at 1500-2000rpm though, well i would of thought so.
Its an issue i have seen first hand with the Isuzu trucks but they got a recall and stopped the regen at lower revs which in turn stopped the raw fuel ending up in the sump, well most of it.
As you can see from the handbook extract though Mitsubishi deem this to be a condition of normal service, i would of found a nice 3ltr Petrol if i knew derv ownership was this much of a pain in the ass for people with little roads!

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I shall stick to the early Hdi's Dean, no DPF and 200,000 + miles with no major problems. Hope you get it sorted OK.

Peter

Thanks Peter but there is nothing to sort, aparently thats just how it is...............
It will go in for its oil change in the morning and then i will be keeping a close eye on it now the running in period is over, hopefully its just a qwerk of the running in process, rings not settled in or something.

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I'm staggered the dipstick has a higher level to say when to change to oil Dean The blow-by must be quite severe and known to be an issue... Quite surprising.

Hope it settles and improves with use and spirited driving...

No such issues on my little one... I've consciously not really run it in. I believe there's no real need to these days - not like the cars of 30 odd years ago when they used to have a special sticker saying 'Running in - please pass"...

New to me too, bizar really. But I can't image so much fuel in your engine oil after 1008 miles is normal. Nice car that Mitshubishi but I would imagine those cars are more designed for middle east countries etc so shouldn't they be absolutely bulletproof?

The oil getting contaminated by diesel and raising the 'oil' level is NOT a particular problem with your car or make. I have a 2006 S-tYpe Jaguar now and can assure you it does exactly the same trick as described. On my car, if you get the DPF full message, you are advised to travel for 20 minutes+ at at least 40MPH continuously and with an already hot engine to burn off the particulates. The reason your dipstick has a maximum 'oil' level is that firstly the oil has been so thinned by the diesel that it is no longer protecting your bearings and your engine may well seize prematurely. A handful of drivers of automatic cars have even been completely unable to stop their beasts and crashed. The whole industry is in denial on these DPF issues and the EU just says its up to the manufacturers to sort. If you look up DPF on google you will find a torrent of unhappy bunnies with DPF cars and vans. Unless you are a sales rep, DPF's are bad news. There does appear to be some variability of regen systems and indeed efficacy of DPF's though .... there appears to be a element of luck!

I'm glad I can't afford a new car.

Peter

The thing that annoys me is that on the Isuzu Dmax they altered the regen map to stop the regen at low revs, the symptoms are that of a leaky injector mainly because thats what it does when performing a regeneration, injecting fuel at the wrong point in the stroke i presume to raise exhaust temps and burn the soot out of the dpf.
Unlike Isuzu, Mitsubishi state it is just a normal part of service, and oil changes at 1k intervals are no acceptable. I will see what happens over the next few k, see if it settles down at all.

As you say Exem, its not a Mitsubishi problem as such, its an isssue with what, in my mind at least, is under developed technology.

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