This Aisin fully synthetic (PAO+Ester) 5w-40 API SN used by speedy is powerful, you may give it a try.
On Shell Helix Ultra 5W40, I'll upload a blotter spot say next 1 to 2 weeks after hitting 14,000 km and see how it goes ?

This post has been edited by zeng: Nov 8 2018, 01:11 AM

Good blotter spot test at 10060 km, no sign of centre zone perimeter ring indicating good detergency/dispersancy properties close to as new.
No dark grey dirt/contaminants in centre and intermediate zones, indicating contaminant levels not very high at this high mileage.
No indication of fuels in outermost perimeter zone.
Engine appears to be in tip top conditions and well maintained.
This oil is still serviceable and could probably go for another 2000 - 4000 km and test.
Did you go on ?

Edit: Apologies for late response, alphaz.
Edit2: I personally consider this 10060 km SHU 5W30 blotter spot as performing relatively better than Honda 0W30 at 3750 km above.
Not trying to bash Honda 0W30 though.

This post has been edited by zeng: Nov 9 2018, 01:14 PM

Deleted.
Double post.

This post has been edited by zeng: Nov 12 2018, 03:33 PM

Comparing my Shell 10099 km blotter spot, Helix Ultra 5W40
against your 10060 km blotter spot ,Shell Helix Ultra 5W30 (Made in Hong Kong)
.... both appears to perform equally well, I believe.

I'm awaiting another SHU 5W40 14100 km blotter spot to 'mature' and will upload in the next few days from today.
This 'Made in Europe' Shell Helix Ultra 5W40 was bought from Giant at RM99.90

This post has been edited by zeng: Nov 12 2018, 05:51 PM

Thanks for posting Chemistry, sorry for the late response.
As is typical of HDEO, this 12558 km blotter spot tests doesn't demonstrate darkened centre zone perimeter ring, indicating high detergency/dispersancy capabilities of used sample.
Intermediate zone is a bit greying in colour, but it's still good.
It appears to me this semi synthetic SHP 15W40 can go beyond 12558 km OCI in this carburettor engine.

This post has been edited by zeng: Nov 13 2018, 04:37 PM

I had used HDEO mineral CI4 15W40 for around 8500 km oil change and found them very robust.
Yours is semi synthetic with CK4 of 'higher' specs.

This Bardahl MXP 5W40 FS blotter spot has very vague centre zone perimeter ring, which is good news at 6829 km.
Detergency/dispersancy capabilities of oil is still strong and probably can still go on for several thousands km more.

This post has been edited by zeng: Nov 14 2018, 03:39 PM

Double post.
delete.

This post has been edited by zeng: Nov 15 2018, 03:29 PM

Wow, nice blotter spot test at 17000 km, Senscents.
No signs of perimeter ring near the centre zone, I would assess the oil detergency/dispersancy properties are in top form and there is probably still life in this oil.
As you took sample at cold, the fuel dilution can be observed at the outermost perimeter zone.
Btw,I would strongly recommend this Platinum Velocity 5W40 to the readers on lowyat using typical Asian engines .

This post has been edited by zeng: Nov 15 2018, 03:12 PM

This oil is still doing fine and appears to be quite clear of grey dark contaminants, indicating good mechanical condition.
However, there is appearance of a centre zone perimeter ring that correlates with dispersancy capability of this used oil and that's something to keep watch, IMHO.
Having said this, I think this used oil is good to go on.

Cempedak has similar HGEO 0W30 in use and seems to have similar trends in emergence of perimeter ring at rather low oil mileage.

Maybe you should take another blotter spot 2000 - 3000 km down the road and see how the perimeter ring develops ?

Btw, what's the car/engine model in use ?

I can say for sure it's authentic for I had seen it's packaging (bought from Giant, but at RM99) and the blotter spot tests below:
5575 km
10099 km,
and going ....

This post has been edited by zeng: Nov 23 2018, 02:10 PM

Wow, obscenely good 22000 km blotter spot test ......
and still showing absence of centre zone perimeter ring, indicating the used oil detergency/dispersancy properties are on top of situations.
The centre zone is generally not greyish dark for its long 22000 km usage, indicating clean engine oil condition with not much of contaminants and combustion byproducts.
Slight indications of fuel at the outermost zone.
My take is this used oil is still serviceable, yes I know it's already 22,000 km in use.
This Pennzoil Platinum Velocity 5W40 really don't play-play, as our bahasa says.
Strongly recommend this oil to lowyat readers here .
Thank you for posting , Senscents and you're adventurous and looks like in control of situations .

This post has been edited by zeng: Nov 25 2018, 06:03 PM

Your driving style is easy on oils , in a 2010 City the engine oil should 'well behaved' , but ......

Hi, alphaz ,
Very good blotter spot tests performance, and there is no signs of centre zone perimeter ring developing indicating this oil detergency/dispersancy properties are still in good shape, despite the mileage .
The slightly greyish zone indicates increased level of contaminants and combustion byproducts at 14,160 km which is well dispersed and good .
But that's nothing to be alarmed about as I believe this used oil Helix Ultra 5W30 is still in serviceable condition.
Should the oil be still in use, may be take another blotter spot in 2000 - 3000 km and see how the centre zone goes .....

This post has been edited by zeng: Nov 26 2018, 08:11 PM

Hi alphaz, that's a very robust 16000 km blot.
There is no sign of centre zone perimeter ring (of 8-10 mm diameter) indicating great capacity of dispersancy/detergency of this used oil sample.
Btw, there is some fuel dilution as indicated in the outermost zone but the oil is strong.
2000 km ? I would speculate shouldn't be an issue if you wish to go for it.
Btw, my SHU 5W40 is currently at 16500 km.
Time to locate my 14000 km blotter picture that I promised prior.

Wkc,
If alphaz sample above was taken after a drive of say > 30 minutes, then the outermost zone or ring indicating fuel dilution may attribute the source of problem to ill tuned fuel injection system, in particular in a carburrettor engine or gasoline direct injection engine.
If the sample was taken cold or < 5 minutes of driving, it's quite normal for most (or any ) engines to demonstrate this phenomenon.Therefore it's hard to point to out-of-tuned fuel system timing as the cause .
Hence it's best to take the blotter sample after driving for say, > 20 minutes to rule out the above 'confusion' .

This post has been edited by zeng: Dec 27 2018, 05:04 PM

Hi Speedy,
What's the ODO total mileage ? Is it carburrettor or fuel injection ?
There isn't any center zone perimeter ring which is good news for this 5466 km blotter spot test, for it indicates this used mineral Formula Shell 10W40 dispersancy/detergency properties are still in top shape .........
meaning there is still life in this used oil.
There isn't much contaminants as the blotter spot is not darkish or greyish. It may indicate a well maintained engine , never mind it is 1999. IDK.
However I will bench mark this Formula Shell 10W40 against Senscents Formula Shell 5W30 8500 km blotter spot and I would like to speculate they share similar additive package.
Not sure if there is any fuel dilution, as I couldn't 'magnify' the image or see clearly its outermost zone.
I would recommend continue its service for another 2000 km or so and see how its next blotter spot performs.

This post has been edited by zeng: Dec 28 2018, 04:24 PM

Delete.

This post has been edited by zeng: Dec 28 2018, 04:14 PM

At 395k km, your engine appears very good shape by looking at your blotter spot.

Now, your mineral Formula Shell 10W40 has a VI of 154 :



Compare this against Senscents' so called fully synthetic FS 5W30 (which at times claim mineral ) , also has a VI of 157 :

My interpretation of Formula Shell 5W30 SN is also a mineral oil, not quite a fully synthetics as occassionally claimed.

I really like to see your FS 10W40 at 8000 - 10000 km blotter spot and see how it fares.

This post has been edited by zeng: Dec 30 2018, 12:17 AM

Hi BZT,
Absence of centre zone perimeter ring, which is good news and quite expected for a 1500 km oil.
There is a lot of life left, and may be take another blotter spot test at 3000 - 5000 km from now and evaluate.
Btw, what's the oil type and viscosity grade ?

This post has been edited by zeng: Jan 1 2019, 07:59 PM