So it would be interesting to see if TDCi forum owners with DPF equipped cars could report back on this thread regards their engine oil levels.Are they ending up with more oil in their sumps than what they started off at?
Volvo who share engines with Ford are introducing new oil change fill levels and a software update. And better than me repeating second hand, I advise concerned owners visit the [url="http://www.volvoforums.org.uk/showthread.php?t=95323&highlight=oil+level+increases&page=6"]Volvo forum thread on the issue[/url], there are some clued up guys over there. It comprises 39 pages of contribution. That's because it is a very active site, having over a thousand viewings and over 250 post on an average day. Suffice to say you will get the gist of the problem, Volvo's tight lipped response, and their on the hoof remedy to over full oil sumps, by reading the first page of the thread.
But just to show an example of the calibre of some of the contributors on the subject, I'll copy post from one contributor.His credentials are as follows
[quote][b]I have been treated the same appalling way by Volvo. Forgive my immodesty. I am a Consulting Engineer. My educational and professional credentials are EurIng, CEng, BSc, PhD, FIMechE, FIOA, MEWI. I have also spent part of my career in the Oil Industry. The Engineering consultancy I ran (now retired) had a worldwide reputation for designing automotive fuel systems, so I have as much if not more so than anyone in Volvo UK.[/b][/quote]
Anyway here are his first two posts in full: Note his comment on a possible dilution rate of [b]23.7%[/b]
I have presented the posts in bold type for ease of reading, but I consider it better to read said posts on the original thread.The Doc content starts on [url="http://www.volvoforums.org.uk/showthread.php?t=95323&highlight=oil+level+increases&page=6"]page six[/url]
[quote][b]Can I offer some factual updates related to the issue of diesel fuel leaking in the engine oil please?
But first some a few corrections to some small technical errors in earlier contributions.
When the dealer "reduces the oil to 2/3rds" that is NOT 2/3rds the total volume of oil in the sump (which is 6 litres on the V70 D5). It is 2/3rds of the distance between the MAX and MIN marks on the dipstick. Since the volume between MAX and MIN is 1.5 litres, then level reduction is 0.5 litres but that is starting from MAX.
My level started about 0.6 litres above MAX, so they reduced my level by about 1.1 litres. However, by careful measurement (by photographing the dipstick and measuring the image) I found that Volvo didn't reduce the down to 67% of the Max Min range but to 52%. Incompetent of them!
With my original oil level being 0.6 litre above MAX then the dilution of my lube oil with diesel fuel has been 11.6%. But should it fill again to the original level above MAX, then, as someone else pointed out, this would be a dilution on a dilution. In my case that would mean a dilution rate of around 23.7%.
I have been treated the same appalling way by Volvo. Forgive my immodesty. I am a Consulting Engineer. My educational and professional credentials are EurIng, CEng, BSc, PhD, FIMechE, FIOA, MEWI. I have also spent part of my career in the Oil Industry. The Engineering consultancy I ran (now retired) had a worldwide reputation for designing automotive fuel systems, so I have as much if not more so than anyone in Volvo UK.
I am new to this forum so I will keep this brief in case I overrun some word limit.
The reassurance from Castrol is without foundation. The protestation that Volvo would not risk their reputation by saving a buck is not credible. Remember the Toyota debacle. Castrol is s business partner of Volvo, so they are not independent, indeed they could be said to have a conflict of interest, theirs with our's.
I took a sample of my lube oil and had it analysed by one of the leading authorities in the country. They analyse oil from major industrial plant and the owners of these multi-million pound plant assets trust and act on their recommendations.
Two extracts from the analysts report said:
“Currently viscosity of the oil in use is equivalent to an SAE20 oil, rather than the SAE30 that it should be. This would offer reduced protection from wear and demands attention. ……….
The condition of the oil is unacceptable for continued use. Our recommendation is to rectify the underlying fault and to change the oil before any wear can occur.”
There are also wear particles present.
I will be sending the findings of the oil analysis to my dealer tomorrow to put them and Volvo on notice that they are now responsible for the integrity of my engine, because they are now in possession of ‘material knowledge’ about this problem. If they choose to continue to ignore me (or us) then legal damages would ensue if the engine is damaged.
There is more to tell but I will stop there in case my message is too large and fails to be accepted. WATCH THIS SPACE.
The Doc[/b] [/quote]
[quote] [b]Is it possible to post .jpg files here?
If so then I can share with you guys
(a) images of the oil analysis report,
(
(c) images of extracts from the owners handbook to turn Volvo's information back on themselves.
This information exhorts us to use only the specified super duper grade of oil for fear of dire consequences for our engines but Volvo allow themselves to turn this super duper oil into a diesel and lube oil cocktail, assuring us that this will not be a problem.
For the record the identification spec' of the oil is:
"CASTROL 0W/30 SLX Professional Longtec Volvo Cars A5/B5 - Full Synthetic
18,000 miles between services."
I checked the Castrol website about this fantastic "18,000 mile between services lube oil product" and it says nothing about the benefits to be derived from it being diluted 10% to 20% with diesel fuel oil.
The Technical Manager in Castrol has said:
"I can understand your concern regarding your Volvo, however, it is
common for there to be dilution of the engine oil with diesel fuel to
quite high levels, [HE DIDN'T DEFINE WHAT A HIGH LEVEL WAS] especially in modern diesel engines fitted with diesel particulate filters, and modern oils are designed to cope with this.
It very much depends on the engine design as to what is a safe level of
diesel dilution, some engines can be sensitive to 10%, whereas we've
seen others running quite happily with 20% and even more on our test
beds. If Volvo feel that diesel dilution resulting in a 5mm increase in
oil level is safe, then that judgement will be based on their knowledge
of their engines from hundreds of hours of development testing, so you
can take some comfort from that. It would not be in their interest to
benefit from a short term cost saving by not changing the oil, compared
to the reputational damage if any number of these vehicles subsequently
suffer from premature failure.
I hope this answers your query, please contact us again if you require
any further information."
I am doing a dissecting analysis of this gentleman's response to my enquiry. But I also believe a similar answer was given to an enquiry by the Forum.
The Castrol Tech Manager says: "If Volvo feel that diesel dilution resulting in a 5mm increase in oil level is safe, ..... blah blah blah." The problem with his analysis is that the increase in level is not 5mm but it was 24.7mm above MAX.
The reduction in level to 67% on the dip stick is a distance on the dip stick of 28.9mm, so what faith can we place in his judgement now he has made that simple and fundamental mistake?
It is interesting that he is confident that Volvo will have made their "It's OK lads" statement based on hundreds of hours of development testing ....". If that is the case then what is Volvo's "Date of Knowledge" of this problem? The date of knowledge is the date from which all liability and damages are calculated.
The man from Castrol goes on to say:
"It would not be in their interest to benefit from a short term cost saving by not changing the oil, compared to the reputational damage if any number of these vehicles subsequently suffer from premature failure."
A short term benefit implies a small amount of money but if these all the particular vehicles worldwide had to have their oil changed every 1500 miles then this would be a galactic sum of money. However, you need to remember that [b]Castrol = BP and Volvo = Ford.[/b]
The inability of BP to properly evaluate cock-ups and resolved is now legendary considering the disaster that is unfolding in the Gulf of Mexico.
Why Ford, the owners of Volvo?
Put this link into your browser and see how big business deals with their reputation. http://en.wikipedia.org/wiki/Ford_Pinto
Ford calculated it was cheaper to pay out when people died than to pay for a redesign. Never mind the moral issues, it is only money. Until the courts issued punitive damages. I have great faith in Courts to get these guys sorted all they need is the evidence. That is where you and I come into the equation.
The Doc[/b] [/quote]