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 Blotter Spot Test Oil Analysis:VOA Helix HX7 5W30, 16,286 km blotter Shell Helix Ultra 5W40

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Quazacolt
post Feb 8 2017, 02:30 AM

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Lol 2 camps, BITOG no less laugh.gif
Quazacolt
post Feb 17 2017, 12:46 PM

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QUOTE(kirakun @ Feb 17 2017, 12:09 PM)
Typo on the date for second picture?

For the second picture, oil is dark and contaminated definitely due for a change.

I would advice against using till such condition as with contaminant shown through oil dip means there may be plenty down somewhere within the block, bearing or anywhere within reach of the oil. Clearly the oil filter is no longer working in this case.
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There's another saying that if your oil is clear, it isn't doing its job in suspending contaminants.

My guess also, is after 48 hours the contaminants in the oil sink to the bottom and stay suspended there leaving a cleaner oil as shown.

Ultimately, it's all guesswork.

The best and proper way is still a UOA. bar none, the end.

Your eyes definitely cannot see metal particles and those you can see are beyond spectrometer that UOA uses and that's actually prompt for concerns.
Quazacolt
post Feb 17 2017, 03:11 PM

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QUOTE(kirakun @ Feb 17 2017, 01:33 PM)
I do agree on the oil doing it's part as a part time cleaner for the engine however i'll say the color of the oil will be a more appropriate marker as the gauge, don't u think so? With that being said, isn't the oil filter supposed to filter the contaminants down to 5 or 10 microns(human hair is 45-70 micron)?

Since the oil filter is present and doing the filtration, how can the visually visible contaminants still present in oil dip? A clear indicator that the engine is mighty dirty or just the oil filter/oil is way due for replacement or both.

Don't get me wrong i also do agree that UOA is the proper mean to gauge the properties of the oil though.
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In the end all guesswork.

And if you say its supposed to filter that low micron, your eyes also can't see them how do you determine the darker color is contaminant and is not deteriorated oil?

And even even I mention deteriorated oil, how deteriorated do you know it is? You cant gauge viscosity properly nor can you check flash point or insolubles.

My oil samples are way darker than that due to rough /high stress /track usage and yet UOA turn out fine.

Logic here: if your oil filter is so good, you also don't need to oil change and supposedly all your drained oil would look damn nice right? (assuming you use good oil)

And again, all I posted here, would all be estimates /guesswork without a proper UOA

Quazacolt
post Feb 17 2017, 04:21 PM

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QUOTE(kirakun @ Feb 17 2017, 03:53 PM)
There is no need to get agitated. I never claimed that "my oil filter" is that good. Also didn't claim viscosity of the oil can be determined through visual inspection nor flash point or any else. Just pointing out that the fact on how an oil filter can filter accordingly as per what was stated. Taking no credit here nor deserve any. Also what I state by gauging the condition of the oil is also based on my point of view that it is absolutely not practical for me and I believe the majority here to get a UOA analysis done during OCI. So I'll just based on the typical recommended mileage aside from color of the oil and buttfeel to know when and at what mileage an oil change is required. But again that's just me.
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Not agitated at all. Just trying to highlight of the unknown variables that we just couldn't conclude anything.

?:
- oil filter
- Oil
- Wear
- Contaminants

Besides, given the resistance even on a Blotter test, good luck on convincing people for a proper UOA that involves so much more money tongue.gif
(even for myself, it's been a very long time since my last UOA)
Quazacolt
post Feb 17 2017, 04:35 PM

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QUOTE
Interpreting blotter tests is on the same scientific level as reading tea leaves; you can end up convincing yourself of things that aren't really there.


Blunt lol.
Quazacolt
post Dec 9 2017, 09:00 PM

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QUOTE(wkc5657 @ Dec 8 2017, 05:26 PM)
Can't really blame regular consumers as pretty much no one knows about used oil analysis.

And even if they do know about it, the price for such a service locally is just damn insane expensive.

Attach herewith the price that i queried last year.
[attachmentid=9414059]
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That's why better to just send BSL
Quazacolt
post Dec 10 2017, 06:27 PM

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QUOTE(wkc5657 @ Dec 10 2017, 02:01 PM)
Yeap true, sending it to Blackstone is much more cost effective.

But for 200+, unless the car owner is overly curious, the most logical thing is to go down the hyper market and grab the best fully synthetic oil, drive it to the nearest mechanic to get it drained together with a filter change, and likely can still emerge with some spare change out of RM200.

Well, for the fun of it and curiosity sake, 200+ for Blackstone is actually a good deal.
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actually, 100+ if you use snail mail (28usd, back to 25 old price if you order 6 bulks)
200+ is poslaju
Quazacolt
post Nov 26 2020, 10:59 PM

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QUOTE(chemistry @ Nov 26 2020, 08:29 PM)
Actually does 100% PAO engine oil exist in market?
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i think no... but Penrite seems to claim 100% (or is it 100% full synthetic je? lol)
https://www.penriteoil.com.au/knowledge-cen...engine-oils/454

out of curiosity, looks like the claim is real
https://www.penriteoil.com.au/assets/msds/1...01.0%200318.pdf
>80% are the chemical based base oil (no petroleum)
rest are esters/(not base oil, zinc based) and additives to make up the rest of the composition

This post has been edited by Quazacolt: Nov 26 2020, 11:17 PM
Quazacolt
post Dec 2 2020, 10:35 AM

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QUOTE(zeng @ Dec 2 2020, 10:19 AM)
100% ester base oil formulation may NOT have some PAO or petroleum synthetic base .
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I am interested source and citations please?
Quazacolt
post Aug 5 2021, 10:33 PM

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QUOTE(zeng @ Aug 5 2021, 02:33 PM)
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.
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please don't continue with misinformation.

UOA have TBN and TAN assessment and that is a definitive and quantitative assessment of an oil lifespan.
HARD SOLID NUMBERS that you cannot judge and bias with.

 

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