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jcw749
Newbie


Joined: 04 Nov 2017
Posts: 47
Location: Cotswolds


PostPosted: Wed Apr 18, 2018 7:28 pm    Post subject: Engine Oil Analysis Results, thoughts? Reply with quote

I've just had the results from an engine oil analysis by Millers Oils for my 2005 C4S, oil is around 4,000 miles old and engine has 58k miles.

The oil is of unknown brand / type.

Aside from curiosity, part of my thinking was an analysis may indicate any dreaded bore wear / score or crank bearing / journal wear?

Heres the key part of the report - keen to hear any thoughts anyone may have.
 



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ragpicker
Reims


Joined: 14 Apr 2013
Posts: 4031
Location: North East England


PostPosted: Wed Apr 18, 2018 7:39 pm    Post subject: Reply with quote

Looks fine to me.

Thumb
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Phil 997
Le Mans
Le Mans


Joined: 05 Dec 2015
Posts: 15573
Location: Bournemouth,Dorset

2009 Porsche 997 Carrera 4S

PostPosted: Wed Apr 18, 2018 7:50 pm    Post subject: Reply with quote

Surprised nice , well that beats my pulling the filter apart and checking the magnetic sump plug Grin Thumb
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ragpicker
Reims


Joined: 14 Apr 2013
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Location: North East England


PostPosted: Wed Apr 18, 2018 7:56 pm    Post subject: Reply with quote

I'm trying to find the last one I did on the boxster. Its almost identical I think, including the boron level which I think is an additive
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jcw749
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Joined: 04 Nov 2017
Posts: 47
Location: Cotswolds


PostPosted: Wed Apr 18, 2018 7:57 pm    Post subject: Reply with quote

Thanks ragpicker - heres the guide to the metals referenced:
 



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Jamesx19
Nürburgring


Joined: 10 Jul 2015
Posts: 476
Location: Brighton


PostPosted: Wed Apr 18, 2018 8:18 pm    Post subject: Reply with quote

Very little aluminium which would suggest bores are ok.

Drive and enjoy OP.
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skinny_monkey
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Joined: 16 Sep 2014
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PostPosted: Wed Apr 18, 2018 9:03 pm    Post subject: Reply with quote

I get mine done every year - I'll find my results to compare. Do about the same mileage as you.
 
  
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Kingb4
Nürburgring


Joined: 20 Jan 2018
Posts: 385
Location: Beds/Bucks


PostPosted: Thu Apr 19, 2018 6:56 am    Post subject: Reply with quote

I havent done it before - but thats a great idea.

I am about to put the car in for a service, so will pull a sample (any recommendation on how to do that - as am guessing you all took samples from a completed drain-down) before they change the oil.
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coullstar
Albert Park


Joined: 15 Sep 2015
Posts: 1640
Location: Aberdeen/Torphins


PostPosted: Thu Apr 19, 2018 7:32 am    Post subject: Reply with quote

If you have any questions just ask them, they are very good at explaining the results. It really does depend on the oil, my Mo level was about 700ppm but that's down to the oil.
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Stoo.c
Monza


Joined: 07 Apr 2014
Posts: 205
Location: Hertfordshire


PostPosted: Thu Apr 19, 2018 8:56 am    Post subject: Reply with quote

Whats the cost of such a study?
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wasz
Sepang


Joined: 28 Dec 2012
Posts: 2998


1999 Porsche 996 Carrera 2

PostPosted: Thu Apr 19, 2018 9:23 am    Post subject: Reply with quote

Stoo.c wrote:
Whats the cost of such a study?


£25

http://www.millersoils.co.uk/services/oil-analysis

bear in mind if you change the oil frequently 5/6k then the wear metals will have half the concentration vs a normal 12k drop.

Also our cars have double the oil in them as a normal car so again wear concentration will be halved.

But best to speak with millers guys after a test.... and compare your results year on year at the same mileage to see the differences.

Its important to control the variables!
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EGTE
Imola


Joined: 06 Jul 2015
Posts: 841



PostPosted: Thu Apr 19, 2018 11:01 am    Post subject: Reply with quote

Just had mine back today. All good and as before, about 700ppm Molybdenum from the Millers Thumb

A great service (very quick) that gives a lot of peace of mind.
 
  
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skinny_monkey
Nürburgring


Joined: 16 Sep 2014
Posts: 464



PostPosted: Thu Apr 19, 2018 1:39 pm    Post subject: Reply with quote

I pulled together a sample of 6 'Blackstone' analysis results on M96 engines that I found easily available online to give very broad average of what to expect.

Looking at the big 3 metals they gave 4ppm aluminium, 11ppm iron, 9ppm copper .

For my results, first year I got 1ppm Al, 5ppm Fe, 3ppm Cu.
Second year I got 2ppm Al, 8ppm Fe, 8ppm Cu.

So looks like from a sample of 2, I'm on the rise. Got a third sample now ready to submit so that could give a trend. However in ters of absolute numbers I'm still running quite low so not overly concerned at the mo
 
  
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jcw749
Newbie


Joined: 04 Nov 2017
Posts: 47
Location: Cotswolds


PostPosted: Thu Apr 19, 2018 3:13 pm    Post subject: Reply with quote

Hmm, that makes my Iron, Aluminium & Copper results seem high, relatively speaking, although given the variables of usage / oil type / avg. volume etc. I'm probably worrying about nothing.
 
  
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skinny_monkey
Nürburgring


Joined: 16 Sep 2014
Posts: 464



PostPosted: Thu Apr 19, 2018 5:11 pm    Post subject: Reply with quote

Like the report says, bit elevated but not critical. I'd consider moving to a thicker oil as I expect it's been running on 0W-40, a 10W-50 will give you a little more protection. How is your oil pressure at hot idle?
 
  
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EGTE
Imola


Joined: 06 Jul 2015
Posts: 841



PostPosted: Thu Apr 19, 2018 5:31 pm    Post subject: Reply with quote

If Millers say it's fine, it's fine. Hand
 
  
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jcw749
Newbie


Joined: 04 Nov 2017
Posts: 47
Location: Cotswolds


PostPosted: Thu Apr 19, 2018 6:32 pm    Post subject: Reply with quote

It's booked for a major service with Northway next Friday, so will mention the report to them & see what oil they advise, assuming they'll use 0w/40 by default. Also having a LTT fitted, new water pump (precautionery) & coolant flush, hopefully keeping temps. down as far as possible.

I'll need to check the oil pressure at full temp. although I dont recall it being notably low.
 
  
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EGTE
Imola


Joined: 06 Jul 2015
Posts: 841



PostPosted: Fri Apr 20, 2018 7:43 am    Post subject: Reply with quote

Plenty of "what oil" threads on here. Not going to open that box now... Very Happy
 
  
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