Mobil 1 New Life 0W40 (Tesco) MB229.5
Oil Life : 19,160 km
14 months oil life thus far .
ODO :312,990 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 .
Make up oil added : Nil

48 hour blotters ,





Absence of darkened and opaque centre zone .

Absence of darkened aureole zone / perimeter ring indicating no agglomeration of contaminants , yet .

Diffusion zone darker than before , indicating increased levels of dirt/contaminants/combustion by-products but appears harmless for now .

Darkened jagged external edge indicates presence of moisture in used oil , which is supposed to aggravate corrosion wear .

But centre zone/aureole zone, perimeter ring and diffusion zone do not indicate alarming levels of wear/dirt/contaminants caused by moisture corrossion .

Fuel dilution seems to be absent from blotter sample .

and ....... going , for now .

This post has been edited by zeng: Dec 1 2020, 01:19 PM

The difference is :
100% PAO base oil formulation must have some ester or petroleum synthetic base for additive solubility .
100% ester base oil formulation may NOT have some PAO or petroleum synthetic base .

This post has been edited by zeng: Dec 2 2020, 10:20 AM

I am interested source and citations please?

Sorry , no citations or source but laced with ambiguity opposite that of certainty .

Persons who had done research rather extensively on 100% ester formulations may be able to throw some light on this .

This post has been edited by zeng: Dec 2 2020, 12:20 PM

Honda City GM2 year 2009
Current Odo : 135,634KM
Date: 03/12/2020
Blotter time : 8:00am (picture after 24hrs)
oil age : 2,330km
Engine oil used : Honda HGEO Semi Synthetic 5W30 SN


Pics taken after 48hrs after blotter test

This post has been edited by 90Boyz: Dec 4 2020, 12:45 PM

Hi ,

If not for your disclosure of its 2330 km usage , this clean blotter would have been mistaken as that of an un-used virgin oil blotter from HGEO semi syn 5W30 SN .

There is complete absence of 'structures' in this 2330 km blotter , which means good news as it indicates 'near new' condition of the used oil sample with minimal or negligible amount of combustion by-products or contaminants/dirt .

The very light colour of the blotter also indicates very very minimal oxidation of oil .

You may scroll through Post # 1 of this thread for a 4.5 years usage at about 6.8K km blotter of similar Honda oil uploaded by @Trony for comparison , though of differrent engine models (?) and driving pattern .

This post has been edited by zeng: Dec 3 2020, 01:10 PM

Item 2 Long Chain Alkaryl Amine is NOT an ester . It performs as anti-oxidants .

Item 3 Zinc Alkyl Dithiophosphate /Phosphorodithioic Acid is an ester . It performs as anti-wear additives , but it is not ZDDP which is also another type of anti-wear additives .

This post has been edited by zeng: Dec 3 2020, 01:43 PM

Hi bro zeng,
Thanks for the explanations
This bottle of oil sit in the closet for quite some times , maybe 2years ?
also i also bought a Aisin 5w30 pao + ester on 11.11 promo
will drain out the Honda Oil when reaching 6k

So we have known that 1-decene is PAO (base oil).
Do you have any idea ester base oil appears as what chemical name?

Yes, any -decene displayed in typical msds is always a PAO .

Ester as the little I know of , is a general terminology comprising numerous varying combination of elements such as Zinc Alkyl Dithiophosphate etc above . Very unlike PAO chemistry .

This post has been edited by zeng: Dec 3 2020, 07:50 PM

It's sad that Motul 300V does not disclose much about ester component in their MSDS. Otherwise we would at least have some clue.

Hi Zeng, just sharing my 1800km blotter test with the same engine but with Aisin 5w30 pao+ester with ceratec.

Should I be worry about the silver lining around?

Mind sharing engine model and odometer km ?

Is the blotter hour matured , i.e 48/72 hours ?

This post has been edited by zeng: Dec 6 2020, 11:02 PM

Its currently around 137k km, Proton CFE engine. Yes, it's a 48 hour blotter test.

Hi Andy ,

Having come across reasonably well performing blotter spot of a 12,000 km Aisin pao+ester 5W40 (sibling to 5W30) , I was a bit taken aback by the obvious emergence of slightly darkened aureole zone aka perimeter ring in this low mileage 1800 km blotter .

Initially I thought ceratec , which I don't know much about , may have a role in this grayish aureole zone .

Going through Post # 1 of this read and I found this Campro CFE turbo engine had a previous blotter spot of 5,218 km of Petronas SN 5W30 , in use immediately after DPS Engine Flush application prior to using Petronas oil .

That previous Petronas blotter also displayed a similar phenomenon in slightly darkened aureole zone which I speculated then it is to be related to DPS flush .

Now , this second oil use of Aisin 5w30 pao+ester also display a slightly darkened aureole zone /perimeter ring in a very low mileage of 1800 km .

I would speculate , again that it is related to that particular DPS engine flush usage prviously . True or not , only time will tell IMO .

As regards the silver lining external to this Aisin blotter spot test sample or halo as I call it , it is likely an indication of engine fuel dilution problem IF this blotter sample was taken hot i.e after 20 minutes or more of driving . Since you did not indicate clearly or thoroughly , this silver lining resembling fuel dilution can also be related to cold temperature oil sample when taken IDK .

IMHO, this 1800 km used oil is obviously still in serviceable condition for a long time to come and I don't think you should be worried about this silver lining , which is negative in a way .

This post has been edited by zeng: Dec 9 2020, 10:39 AM

Sharing my first blotter... Hopefully it is ok.
Oil : Toyo Semi Syn 10w-40 ( used for around 2000km )
Car : satria neo clocking 155k km


Not sure this consider ok or bad...


Attached thumbnail(s)

-delete-

This post has been edited by zeng: Dec 12 2020, 04:37 PM

Hi ,
This 2000 km blotter spot of Toyo Semi Syn 10W40 is still in good shape and remains in serviceable condition for many thousands of km to come , IMO .
The centre zone is clean ,light coloured/yellowish and transparent indicating negligible amount of higher density contaminants or dirt .
A semi-circle of very light gray coloured aureole zone/perimeter ring is about to emerge .
Diffusion zone is light yellowish ,clean and transparent indicating very low levels of contaminants and dirt .
Absence of darkened jagged edge surrounding the diffussion zone indicating absence of water moisture in this 2000 km blotter spot .
No visible translucent halo at the outermost zone indicating no signs of fuel dilution .

wow
sounds like a good news
i always use Tesco/Giant Shell helix ultra 5w-40 , but due to MCO seldom go out then i've switched to this Toyo semi-syn from nearby workshop.

Shell Helix Ultra 5W40 has a very powerful specifications in MB 229.5 which is recommended for 30,000 km by Benz in appropriate engines in Europe .
It is a full synthetic solely or mostly of GTL base oils and probably contains no or very little PAO or ester .
It has strong additive package containing Molybdenum and Boron .
Semi Synthetic Toyo 10W40 has only SN (?) specs to 'boast' .

This post has been edited by zeng: Dec 12 2020, 09:40 PM