IMO, it is the efficient and effective fuel/combustion system, though aged, that produces no unburnt fuel hence total absence of fuel dilution phenomenon in the two engines .

I'm unaware of a 'theory' that fuel dilution could be stopped/eliminated by a piston ring system .



IME, it is this leakage/bursting of this coolant levels during engine operation resulting in engine overheating that you may want to watch out for .



Despite its age and short drives , I don't really see there is any damaging levels of 'debris' within the engines that must be removed by 'extra-ordinary' means ........... or ...... by hook or by crook .

3 month or 12 month removal duration makes no difference as to the engine longevity IMO .

Any ordinary PCMO or HDEO would be more than enough to undo the harm, if any .

Your worry of harm to engine oil seal by 'top' detergency/dispersancy properties of HDEO is unjustified and self-fright in my assessment .

I too would be unwilling to try those 15 mins engine flush as per your position .

Having seen the 'effectiveness' of (DPS) engine flush in physically removing 'debris' in several blotter spot tests in this thread , I do not and I would not advocate its use even in my high mileage or high oci engine .



Boron ppm reading in the form of pricy VOA/UOA with which I would not expend . One may speculate its relation with TBN/SaPS , and it remains a speculation .

So called (5 year) expiry date by oil companies did not hold water in several UOA/VOA's that I had read .
Yes I would use that Helix Ultra even if it was made in 2007 or 2017 , for a blotter spot test is your guiding hand .

Tq for the answer above, zeng and thrust

really appreciate what oil should i used..
gonna stick to fully i think ..




This is my blotter.. 24 hours
2k mileage since oil change
5w30 petronas syntium 3000 se fully
car mileage 303 600

This post has been edited by jin^manusia: Feb 14 2021, 12:24 PM

How much you bought your Syntium 3000 SE?

I recently bought the Syntium 3000 5W30 from Paulhew for the price of only RM119.

From jpcauto.. donno ori or not.. but seem the seller all oil he sell kinda sold out..

Quite a good bargain wor!

Hi Jin ,

The centre zone of this 2,000 km oil is not darkened , and it is transparent ... which is good news .

However, there is clear emergence of darkened shape of aureole zone/perimeter ring indicating coagulation/agglomeration of combustion by-products and/or detergency/dispersancy properties of Syntium 5W30 begins to breakdown ....
which is harmless for now but it is something one needs to closely monitor its further development .

Diffusion zone is clean and transparent indicating quite low levels of contaminants/dirt .

Absence of darkened jagged edge indicates absence of water moisture in this 2,000 km sample, as it should be .

There is slight signs of fuel dilution with 'shallow' halo at the outermost zone , probably due to short trips or the cold blotter sample was taken after a short drive .

Overall, this used oil has plenty of life left , despite emergence of darkened aureole zone/perimeter ring and it is good for continuing service in the City IMO .

This post has been edited by zeng: Feb 15 2021, 12:53 PM

If this oil from Paulhew has FR (meaning with Ford Renault Approvals), which I think is likely , then it has higher specification requirement than Jin's basic API SN specs oil .

Nope, the Syntium 3000 and also the 3000SE are basically identical blend which is of lower specification that the FR.

But I think the 3000 is sufficient for my car's usage (Honda City).

Inspira 2.0, 170k km
Oil blotter is 10.3k km. Should be 3 days old, or more as I forgot about it.
SHU 5w-40. Bought from. Local hypermarket, T o H, can't remember too.
Added about 300ml of Shell Rimula 15w-40 as it needs more than 4L of lube.

Not sure what's the black dots is from the engine, or anything under my driver seat. I placed the blotter paper there.
Will try another blotter to verify before oil change.

What do u think about this image?



This post has been edited by ahsam1212: Feb 18 2021, 12:38 AM

Hi Bro,

Not sure which particular black dots you are refering to , but it appears on the upper half of the blotter spot there are like 3 unbroken lines (or is it 2 ?) that were 'touching' supports from below the paper placements during the duration of dispersion of oil deposits/spots ...........
which is something to be avoided for 'perfection' but no harm in a way .

There is absence of darkened centre zone and it is transparent , which is good news .

The aureole zone/perimeter ring is very vaguely/mildly darkened and is hard to identidy .....,
which is good news too .

Overall , there is no agglomeration of combustion by products or commencement of breakdown of detergency/dispersancy properties of this 10.3k km shu 5W40 used oil .

Not sure if the 300 ml of HDEO Rimula 15W40 has made any contribution to the above blotter with its stronger detergency/dispersancy properties in typical HDEO .

The diffussion zone is clean and light coloured , indicating quite low level of contaminants .

External jagged edge is only very vaguely and slightly darkened indicating lower levels of water moisture contamination for this 10.3k km used oil, but water moisture there is .

No signs of translucent halo at the outermost zone indicating fuel dilution phenomenon is absent , probably from your appropriate pattern of running this Inspira 2.0L around town .

IMHO, this cocktail of SHU 5W40 with 300 ml of Rimula 15W40 at 10.3k km mileage is still serviceable and good to go , if you're comfortable about extending it .

This post has been edited by zeng: Feb 18 2021, 11:38 AM

Yeah, a basic SN/SM/SL would have been adequately specified* by Asian/Jap OEMs like Honda etc whereby an ACEA or Ford/Renault/MB/VW approvals would not be required and unneccessary , if and only if Ford/Renault approved oils cost one a lot more with low availability ..............
which being in Klang valley it isn't true as far as I am concerned, whether or not there are online promotional offers or otherwise .

*Edit :
In the context of conservative OEM recommended oil change intervals .

This post has been edited by zeng: Feb 18 2021, 02:44 PM

Thanks for the explanation. Just ignore the top 2/3 horizontal lines as it's something printed behind the paper. Overall, I see the engine is still in healthy state.

Mostly gentle drive, n some highway cruise 120-130kmh. Maybe it doesn't kill the EO in a fast way.
Mostly longer trips, 40km.

I would normally change out the oil for peace of mind.
Next engine oil will be using 4L Total 7000, 10w-40 n 300ml Rimula 15w-40. Left over HDEO....just put it in. Don't own a diesel car any more.

This post has been edited by ahsam1212: Feb 18 2021, 10:28 PM

I think this Total 7000 10W40 should do 10k km no sweat .
An HDEO such as Rimula 15W40 may also be good enough for 10k km OCI in an Inspira 2.0L , imo .

Edit

This post has been edited by La2yboy: Mar 5 2021, 11:55 PM

After 2,243 km, the oil still looking great. How much is this Aisin FS oil?

about RM130 from shopee after some shopee coin redeem

Honda City GM2 year 2009
Current Odo : 139,832km
Date: 03/03/2021
Blotter time : 8:00pm (picture after 36hrs)
oil age : 2,243km
Engine oil used : Aisin Engine Oil Fully Synthetic with Pao + Ester SN/CF 5W30 (4L)



This post has been edited by 90Boyz: Mar 5 2021, 11:56 PM

Hi Bro,

There is complete absence of 'structures' like darkened/grayed centre zone; aureole zone/perimeter ring; grayed diffussion zone etc ......
which is good news.

There is also absence of darkened jagged external edge (indicating absence of water moisture) and absence of translucent halo around the outermost zone indicating absence of fuel dilution phenomenon.

This engine appears to be very well maintained and it has excellent mechanical condition IMHO.

In short, this 2243 km used Aisin PAO 5W30 is good to go on for sometime to come.

Besides, this oil claims as a mid-SaPS with PAO and/or Ester and it has superior base oil qualities, it is likely to perform equally well as this 12,000 km blotter spot test of @speedy3210, never mind that it is without Euro OEM approvals like MB229.51/52 consequential from selection of additive package etc.


Note:
Post #1 in this thread has more blotter spot test samples in other engine types of quite similar oils for comparison.

This post has been edited by zeng: Mar 6 2021, 11:48 AM

Hi zeng
Total car mileage 13x,000km
Oil mileage slightly more than 3k km
24 hours blotter after a short drive.
Oil age: 1 year.
Liqui moly 5w30 fully syn from shopee paul hew.



Attached thumbnail(s)

Hi Bro,

I suppose this engine is Honda City?

Liqui Moly has 18 'models' of 5W30, mind sharing which one is yours?

There is kind of absence of 'structures' such as centre zone, aureole zone/perimeter ring, diffusion zone, darkened jagged external edge etc, which spells good news in tip top condition of this 1 yr 3k km used 5W30 LM engine oil.

However there is presence of translucent halo at the outermost zone indicating fuel dilution phenomenon in this 1 year 3k km very low usage oil which would be 'supposedly' bad as it promotes corrosion wear.

This IMHO is irrelevant and harmless by looking at the blotter spot test image, an opinion which may be verified with a paid high rm UOA which I personally deem unnecessary for our context.

Overall, I would consider this 1 year 3k km used LM 5W30 of very low contaminants/dirt levels as fit for continuing service in the engine.....
dismissing the myth of 1 year oil life limit on engine oil in use as propagated online every so often by .......

This post has been edited by zeng: Mar 13 2021, 10:53 AM