QUOTE(ahsam1212 @ Aug 5 2021, 01:29 AM)
Now my oil is probably somewhere in condition 3. Probably it will become condition 6 after more use isn't it?
Normally how long in terms of km will it turn to 6?
Granted blotter tests are principally jugdemental and qualitative in the sense that it could not be 'quantified', I would rank your 7500 km Total 10W40 sample as somewhere around 1.7 or 1.8 where darkened aureole zone is yet to form. Normally how long in terms of km will it turn to 6?
Of course we could sometimes argue it is higher at 2.5 etc.
To get closer to Spot 3, your Total 10W40 could probably go up to 11,000 - 14,000 kms.
Spot 6 ? That's still very far imho until one gets into the regime above 20,000 km for this semisyn.
Note:Post #1 has links to some 15 blotter spot tests of my Total 7000 Energy 10W40 (SL A3B4) samples for comparison purpose.
Edit: Even though a Used Oil Analysis is 'quantitative' in providing numerical ppm's of various metal wear or metal elements, it is still basically a judgemental and qualitative analysis in terms of assessment/evaluation as to the state of 'wear' of the used oil sample and its stage of oil life journey etc.
This post has been edited by zeng: Aug 5 2021, 02:41 PM
Aug 5 2021, 02:33 PM

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