So, it's okay to keep using the oil despite it being more than 8 months old? Mileage are both like less than 4k km...LOL...

The blotter spot test of this Mizu 5W30 clearly demonstrates this 2582 km used oil has very low level of combustion contaminants and close to brand new levels of detergency/dispersancy performance .

You may cross confirm its fitness of continuing service with a Used Oil Analysis at RM2XX , which I consider as not value for money and redundant .

8 months or > 12 months used oil is not a valid basis of rejecting/replacing used oils as often propagated out of fear of unknown or parroting/repeating others' opinion piece from time to time .

Note: Sorry for delayed response during 1 week outstation absence .

This post has been edited by zeng: Sep 10 2020, 07:41 PM

Honda City GM2 year 2009
Current Odo : 131,824KM
Date: 16/09/2020
Blotter time : 12:00am (picture after 34hrs)
oil age : 10,006km
Engine oil used : Amsoil Signature Series 5w30



This post has been edited by 90Boyz: Sep 17 2020, 10:57 AM

Hi bro ,

Excellent 10K km blotter spot of Amsoil SS 5W30 in a 2009 Honda City GM2 .This engine condition seems to be well maintained .

There is absence of darkened centre zone ( of about 8 mm diameter size in actual sample ) indicating absence of agglomeration of combustion contaminants after 10K km usage .

There is also absence of darkened perimeter ring/ aureole zone surrounding the centre zone indicating high capability of used oil dispersancy and detergency performance .

It is observed this 10K km Amsoil SS 5W30 blotter is said to be lacking in 'structures' which is good news in its capacity for continuing service and generally the diffusion zone is of slight brownish and transparent and not darkish/grayish .

It seems this blotter has no darkened and jagged edge external to diffusion zone and it is quite free of water moisture .

Outermost zone is not showing a translucent halo indicating absence of fuel dilution problem in this used oil sample .

Btw, IIRC this Amsoil SS oil is claimed to be good for 15000 -20,000 miles in U.S. , conditions apply .

This post has been edited by zeng: Sep 17 2020, 05:36 PM

Hi Bro Zeng,
Thanks for the details explanations, will continue use another 5k to do the blotter test again

I'm of the opinion that another 5,000 km usage in this 10K km Amsoil SS 5W30 used oil would have passed the test limit of an UOA in laboratories .

72 hour blotter
Mobil 1 New Life 0W40 (Tesco) MB229.5
Oil Life : 15,795 km (72 hour blotter)
ODO :309,625 km in
Car model: Toyota Avanza 1.3L
Engine: K3VE Multi Port Injection
Added some 100 mL of graphited engine oil in Elf Molygraphite 15W50 .





Absence of structures such as darkened centre zone , darkened perimeter ring/aureole and outermost translucent zone which means good news for the used oil .

Diffussion zone is grayish but not darkened yet and , darkened jagged starbursts edge indicates presence of water moisture which theoretically promotes corrosion wear which IMO, is harmless for now by looking at the blotter spot .

Meanwhile ................. keeps going .

This post has been edited by zeng: Sep 23 2020, 12:38 PM

added ELF Molygraphite engine oil ?

Yes, spot on .



Somehow I felt good with this mixing , engine seems smoother and quieter than without and ,likes its blotter spot performance so far despite Covid-19 MCO .

This post has been edited by zeng: Sep 23 2020, 07:51 AM

heard about some youtuber claim you can add in graphite powder also works too ..

Just curious. Why not LM MOS2? Been happily using this for over 10 years (I only add one-third bottle every lube change).



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I tried L.M Ceratec or L.M MoS2 Leichtlauf in the past also can't came close with my Amsoil Signature performance ..
also my 2cents

Must be the graphite but am wary as don't know if it is fine enough not to block the oil channels and/or oil filters.

Confident in LM MOS2 as read extensively on Bob Is The Oil Guy that the MOS2 used are fine enough to not block these.

Yep , I heard about graphite powder from bitog as a kind of solid lubricants .

I consider this Elf Molygraphite as a form of solid lubricant in this trial .

To my surprise it's mixing (of about 100 mL) runs smoother and quieter . Hence intending to continue this mixing practice to use up the unused Elf , never mind the Euro OEM approved oils I have been using is itself a fully formulated oil supposedly doesn't require additional oil additives .

Besides I'm also quite happy with its blotter spot performance .

This post has been edited by zeng: Sep 23 2020, 12:37 PM

Does it work smoother and quieter for you with this LM adding ?

This post has been edited by zeng: Sep 23 2020, 12:41 PM

Personal experience, Yes (but others may not say the same).

But bear in mind, many high end lubricants already added small amount of moly into it's formulation. I add extra for my own reasons and use.

I use this LM MoS2 additive too, but only on lower grade semi-syn EO. Never used on SHU as I personally feel it would be downright a waste when SHU already has tri-nuclear Moly.

But actually I am using Tan Chong's label of MoS2, which is an OEM label of LM. Can find it online in Lazada/Shopee at a price that was cheaper than LM itself. Same smooth/quieter feeling as LM.

True that M1 0W40 or SHU 5W40 already have some friction modifiers in Moly and Boron and fully formulated . Amsoil SS 5W30 has a lot more than M1 and SHU above .
Not quite need extra from mixing in a way .

However , semisyn or mineral oil that comes without Moly and/or Boron additives would benefit more from the marginal addition of Elf Molygraphite or LM MoS2 in reduction of friction if not smoothness .

This post has been edited by zeng: Sep 24 2020, 05:29 PM

Link

Help me diagnose

Petronas syntium 5w30 malaysia version from paulhew (suspected is replica OEM Grade A oil but not recycle oil)



Brighter picture is facing the sunlight

Darker picture is on the table

This post has been edited by PointOfSale: Sep 26 2020, 10:29 AM


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