15 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHEngine Oil Analysis Results, thoughts?
Leading reported evidence
Check magnetic sump plug :grin: :thumb
Suggestion or failed attempt
No successful repair reported for this finding.
0
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0
Unsuccessful attempts
1
Discussions
Read evidence and context
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Suggestion
nice , well that beats my pulling the filter apart and checking the magnetic sump plug :grin: :thumb:
Leading evidence: 'Check magnetic sump plug :grin: :thumb' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check magnetic sump plug :grin: :thumb' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion
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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Suggestion
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.
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Suggestion
However in ters of absolute numbers I'm still running quite low so not overly concerned at the mo
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Suggestion
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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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.
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.
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.
£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!
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.
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
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.
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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