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According to OEM recommendations (source from my car's manual):
1. There are 3 sections where engine oil recommendations are mentioned:
(i) At the front page where it says "
PROTON recommends PETRONAS Syntium or Mach 5 product ranges meeting API SL or higher"
(ii)
(iii) Specs sheet on recommended lubricants: SAE 10W-30 or equivalent "SERVICE SL" or high grade
2. There are 2 conditions for oil change as stated in the manual:
(i) Periodical Service Maintenance whereby oil change is set at 10,000 km or 6 months (whichever comes first)
(ii) Severe Usage Service Maintenance whereby oil change is every 5,000 km or 3 months (whichever comes first)
- Severe operating conditions include but not limited to the following cases:
1. Driving on dusty roads or in an area in which the vehicle is likely to be exposed to salty air.
2. Driving on tough roads, on submerged roads, or hilly areas
3. Engine idling for long periods of time or short distances traveled during cold weather
4. Frequent, sudden application of brakes
5. Use as a rental car or taxi
6. Operation under excessive load
7. More than 50% operation time in heavy city traffic in hot temperatures of 32 Celsius or higher
8. Overloading
9. Operation in extremely hot weather condition.
Now my daily driving is about 15~20 mins to work in the morning. Ranging from 10 km ~ 19 km (depending if I have to drop someone off elsewhere first).
And on the way back home it'll take about 30 ~ 40 mins with I guess similar range but more traffic lights.
I do face a lot of traffic lights but rarely stuck in jam or idling for long periods of time. I'm also using a manual transmission car if it matters.-----------
QUOTE(Imagination *-* @ Oct 20 2017, 01:17 AM)
Thanks for the reply. I would like to confirm again (after seeing my service invoice) that the engine oil I'm currently using is Syntium 800 SE 10W30 SN-4L.
Imagination,
Are you referring to Syntium
500 10W30 SN GF5 as follows , if its website is up to date ?
https://www.mymesra.com.my/Passenger_Car_Mo...500_10W-30.aspxOtherwise, either website is not updated or your invoice description has error.
Can you upload front and back pictures of the bottle ?
Let's assume for now it is Syntium 500 10W30, SN GF5 , which is having a TBN of 7.0, this oil is still inferior to the
a) Syntium 800 5W30 SN GF5 with TBN 8.5 and ;
b) Syntium 800 10W40 SN A3B3 with TBN 10.0 as already stated above.
QUOTE
I would like to ask if I may, my new car is about 14000 km now after a year. Thus i rarely travel far and long.
I do drive alot in city with stop & go traffic and thus I will never reach 10,000km OCI by 6 months.
My question is must I follow that 6 months interval?.
With any of the 3 oil types above,No you need not 'follow' the (OEM) suggestion limiting to 6 months interval.
If you wish, you may even exceed 12 months, however Blotter spot test is prudent.
QUOTE
Is there an expiry date for my engine oil?
No expiry date really, if you monitor with Blotter spot test regularly.
QUOTE
Let's say in 6 months I only driven 3000 km but daily and short trips.
Can I prolongĀ it to 10,000 km then only change even though it'll take 1 year and more?
And the car is proton saga campro vvt.
Yes, no problem stretching it to 10,000 km OCI or exceeding 1 year in particular with Syntium 800 10W40 SN A3B3 above.
But please monitor with Blotter spot test to check for abnormality, if any, during usage.
QUOTE
Regarding warranty, I'm sort of opting after my 3rd change (due to last free service) or even before that to do my OCI outside and possibly using other brand/quality of engine oil. Any recommendations? I'm sort of looking into cheaper oils like those in Lazada "Car Doctor" brands where have high review ratings & cheap fully synthetic. But a little skeptical as it is sort of too good to be true.
Without links to product specification , sorry I apologise for not being able to comment on 'Car Doctor' oils as I'm totally clueless about its specifications .
Why not consider branded oils where it has websites with specifications details freely available to general public as there are aplenty in Klang Valley ?
After you have considered its prices/budget and its availability to your locality, then providing me your choices of oil brands and viscoisty grades (with links etc) being considered by you, my dedicated comments subsequently may meet your specific needs better, I suppose.
QUOTE
The rm60+ service charge is pretty darn expensive but yea I'll be losing the warranty. I am a little concern about warranty but would like to know if there is a cost saving route as well. Will have to weigh the pros and cons later.
*edit: I would also like to mention that I'm not so familiar with the technical specs & knowledge on engine oilsĀ

Generally local mechanics charge you labour cost of around RM10-20, with your own oil, why not consider buying branded oils (like Castrol , Shell, Total, Liqui Moly, Ravenol,Mobil etc ) of high quality that are being sold in Giant,Tesco and Aeon Big outlets throughout the country ......
where they have sales promotion every now and then at real cheap price ?
Hope it helps.
This post has been edited by zeng: Oct 20 2017, 08:14 PM