As per title say, any sifu can recommend engine oil for Myvi? 2008 version. Like what brands to use, synthetic/not. First time changing oil myself.

5W30 fully synthetic
10W30 semi synthetic

I drive same year 2008 Myvi 1.3 Ezi. 12 years old car don't change to thin oil. Keep it at 10/30 or 10/40 semi synthetic. By this time all the gaskets and seals would have hardened. Leaks will appear.

Only last month i changed the valve cover oil seal/gasket set. Bottom has some leak that seems to come from where gearbox & engine meet. That also needs to be changed.

So if you have been using 10/30 or 10/40, just keep using that. Do remember that once you change to fully synthetic, it would clean the carbon build up at the gaskets that actually seal the leaks. And you get leaking engine oil on floor.

I kena with my old corolla and also this myvi. Was using semi syn all the while and changed to fully and oil leak. hahah.

Cuz this Myvi I bought secondhand in less than 3 months. Don't know what ex-owner use.

Btw, how much usually 10/30 10/40 will cost?

10W40 is typically a semi-synthetic that's good for oil change interval of 10000-12000 km , IMO .
I did 15000 to 16600 km with a Euro ACEA A3B4 spec'ed Total 10W40 .

10W30 is typically a mineral oil, an ACEA spec'ed oil would be good for 7000-10000 km easily , IME .
Unfortunately it is not available where an Euro 10W40 semi-synthetic is always available at Aeon Big/Giant/Tesco etc at a promotional price point of RM80-100 per 5 Litre pack .
Heck, you can always get fully synthetic (0W40 or 5W40,5W30) at RM100 from time to time from supermarket promotions .

This post has been edited by zeng: Feb 1 2020, 10:23 AM

His car is used 12 years old with unknown service record. No way i would recommend oils so thin. 10/30 or 10/40 semi synthetic would work the best. Those new gen super thin oils are made for new gen engines with really high tight tolerance. If the engine was rebuilt, yes no problem. But this is 12 years old worn engine. You have to take into account material wear in the cylinder walls and piston rings. And also the higher detergent that suspends carbon/ sludge in the oil that seals the hardened oil seals/ gaskets.

0W40,5W40 ACEA A3B4/C3 are thin for a 12 yo Myvi whose manual calls for xW30/xW40 SM Ilsac GF4 ?
Wish you aren't joking ?

I'm afraid 5W30 ACEA A5B5 or A3B4/C3 is not 'thinner' than an xW30 SM Ilsac GF4 called for in the Myvi manual .

This post has been edited by zeng: Feb 1 2020, 12:38 PM

Because you never took into account engine wear! Those "specs" are for new known condition engines! If he uses that, 2 months down and the engine leaks, will you step up admit you were wrong? Dude i am driving the same car from 1st owner with same manufacturing year with 175000 km Odo and i can serious tell you the new gen oil will seep though the worn parts. Because i have documented 1 half years of what oil i used with specs and price and the leaks happened. And those detergents caused the leaks because it cleaned off the old crud that was keeping the oil in.

Do you even have a 12 year old daily driven car with you? I have a 44 year old corolla with even diverse engine oil and brand tested with 2 known overhaul did to it. And still causes the same problems when you upgrade or downgrade the oils. You just won't know what is holding the oil in until you changed the oil that did it.

The last question is, can you guarantee he would not face leaks from seals with those new gen oils? Can you?

This post has been edited by netmatrix: Feb 1 2020, 12:53 PM

Sorry, I would like to stick to the goal post(s) as set out by OP .
I can accept OP shifting goal post(s) though .

Any oil, cheap cheap. As long engine not dry, no issue at all. Pointless to spend much more, engine just need basic lube.

Chill guys

I have another question regarding the oil filter tho. To install/ change the filter will require the special oil plier or can just use hand? I read a few threads engine oil sell in 5 liter and car will take 4 liter only, European car got bigger capacity for 5 liter?

I think my Myvi is the same as netmatrix one. 2008 production, auto gear.

5W-30 or 5W-40 (Semi or fully syn)

If already got oil burning issue or less oil during oil change downgrade to 10W-40 (semi)

Recommended oil change intervals
Semi - 7k
Fully - 10k

You need a oil filter hub or cap to turn the oil filter out, need special tool..
Normal engine oil selling outside spare part shop are from 3~4 Liter for Perodua cars, just ask for 4 liter engine oil bottle when purchase as myvi will need around 3.5 liter of engine oil.

OP, you may consider this Shell Helix HX8 5W30 (which someone here bought online cheap) for the 12 yo Myvi .

It has an HTHS (High Temperature High Stress ) @ 150*C of 3.5 cP or more .
I'm sure Shell Malaysia would consider your 'guarantee' request , if you choose HX8 X .

This post has been edited by zeng: Feb 3 2020, 11:26 AM

I checked previous service record. Oil run is 86,200 to 93,200. Now is 94,000+ already. I think its better to stick with semi as netmatrix suggested.

Btw, I went to Shell, Petron, Aeon and Tesco today. Aeon got peroduo 4L semi 5W30 cost at RM109. Shell got semi 5W30 on promo at RM120. Tesco got 5W30 fully at RM120. I check shopee price and 5W30 semi is so cheap around RM60-80 range. Why so large difference?

Shopee got a lot of fake oil around, need to be careful.
Usually i go to trusted spare part shop to buy.
If you want to go for Perodua 4L semi 5W-30, road side spare part shop should be selling around RM70~80 range.

Using good engine oil is very important in maintaining the engine. If just need oil only then why don't you use cooking oil for your car? Cheaper.

Without going into details on what comprised of good and bad engine oil, you just need to know good oil have addictives that help make the oil work better or last longer. Once you put the oil in the engine it will get to work very hard in protecting your car engine. It is important to have good quality oil as bad oil will cease to function as lubricant and also other effects. Bad oil will cause engine wear and tear faster which cause the engine oil to leak as mentioned.

As a few expert said before, if you have the money change the oil every 100km. It is always good to have fresh oil. For cost reason usually people will just use the oil in it's recommended intervals which is semi-7.5k and fully-10k plus or minus few k. Some oil can go up to 15k but it's up to you to experiment.

For an old car like your myvi, it is true you should use something with higher viscosity. Recommended in manual is xW30 but you can use xW40 also. I stick to using 5W30 for my 2006 Myvi and it is working fine. However, I am testing out a few cheap local made oils. I would recommend using fully synthetic as it has better quality oil and additives. Last longer too so I don't need to change too often.

I am not going for known brands for fear of fakes. Lots of fake for perodua, shell, petronas, honda, toyota brand of oils. So go for brands that nobody bother to make fake.

If you search this forum, you can find people discuss about oil blotting tests. Over there you can find a few reviews from real users on oil quality.

https://forum.lowyat.net/topic/4192241

Just settle for cheap. As long oil is there, engine be fine.