Been using sumo R1 for 4 years. It's good for daily use. Checked the components are still ok with no oil slug on the pan. Still clean.

But RM289 for the engine oil is kind of hefty.....
You can get a lot cheaper fully synthethic oils out there

I was using more expensive oil those days, now on the cheapest I can find.......

you get what you pay for.

and really, its all about personal preference here. some prefer to get expensive oil, more mileage then OCI, or get cheaper oil, and more frequent OCI.

That is their thinking, but actually whether expensive or cheap same OCI, unless stated extended use, or long chain interval. These are usually sold in the states.
If engine uses more oil like those using 5L or 6L, can also prolong the use.....

well, some examples:

good semi syn, lets say liqui moly, rm118 ya.
even over 5k/6k, engine performance never drop, never consume engine oil, as if nothing happened.

cheaper semi syn say, rm70
3-4k engine already feel like shit. usually consume oil a bit, worse case 1/4 amount.

so yeah, for the most part, you really get what you pay for. and yes, if the oil isnt meant for prolonged use (especially the specs written, regardless of advertisement/marketing), please do not prolong use it as well

That is why oil companies never override the Car manufacturers recommended OCI.....

mercedes benz mobil OCI 15,000km. standard n edi preset in the car dashmeter

i until 10k. using lm semi syn,, engine still feeel ok...

recommended if still keep it under 5-7k la. carbon is still carbon, and engine oil is still engine oil, not a miracle liquid

this part yg aku suka dispute.. but thing is , nowdays,, susah nak carik proof to what i say... ever since i got my proton gen2 running on vanilla campro. my oci has been 10k. my argument is this :
a) if i remember correctly, the campro engine was originally designed for 10k oci running on proton's recomended oil. the oci was one of the features that proton was harping about when they first launched the engine.
b) when i first got the car, i remember reading in one of the books ( either service manual or owners manual) that the service interval after the first 10k is 10k. only after a year or so, the newer reprints of the books they switch back to the 5k service interval
c) if am not mistaken the lm mos2 10-40 is rated bmw longlife98 which gives a longer than usual oci rite ?

OCI is all individual case. Car manufacturer also some recommend 5k, some 10k. Change according to your own use and needs.....
My NA is 5k or 6 months on SS
My turbo is now 3k or 3 months on FS

a) that one not sure, however proton... yea lol
b) i can somewhat see WHY the switching back heh
c) AFAIK yea, however carbon build up may still be an issue.

again, really personal preference here, what i merely was recommend. as i said, carbon build up may still be an issue, and lm oils arent cheap, if "rich", shorter OCI lo, else, go longer lo

today i just use primer oil in the morning and drive from PJ to Klang then change engine oil there using LM 10W 40 bought together from Elton 1 month ago.

Will test it out for few week see any improvement.

Imho, lm oils are around the same price range as castrol or shell, so,, not because being rich or poor...
Actually, as long as the engine oil and gb oil are changed regularly, the engine should be ok lor,, use a good flush everytime...

Someone compared this with Qmax before


One example : the Saab engines. 1.8litre, but 6litres of oil. 15k interval


Some manufacturers state : 10,000km or 6months whichever comes first.

why 6months? Because... oil is hydroscopic. Absorbs moisture once exposed to extreme heat(correct me if I am wrong).



Many also get the impression :

"Whoaaa... everytime after I change my oil, my car feels smooth again!"


What they didn't realise is that the current oil quality degraded. I strongly believe that you should not feel much difference after an oil change (provided you are using the same oil before and after oil change) as the current oil should maintain its qualities and properties

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Added on January 8, 2012, 12:19 amThank yous . Didnt know it was you.


What car is it? If you really want to take care of the engine then you have to try your best to keep it clean. Normal oil changes may or may not be sufficient

This post has been edited by ThunderGod_Cid: Jan 8 2012, 12:19 AM

Hi Elton,
Not to correct you but share info. As far as I know brake fluid is hydroscopic, but not engine oil. When you run the engine but do not bring it up to working temperature, like short distance town uses, then the water vapor is not vaporizes, so it condenses and form water that mixes in on a long run.
That is why using the engine in short runs, it is better to have OCI more often, not longer......

maybe why when i use good oils like lm for example, despite over 5k, the engine performance is still not much (if any) difference, even after oil change.

on the contrary, mixing crappy SS hi-rev oil into it reduces the performance so damn much

Why did you mix different oil in?

leftovers, forgot last time i asked on this sub-forum? everyone including you said ok wat. it really is ok, cept shit performance lol