This is my review about engine oil I used

brand: HI-REV 6030/6033
model:10w30 ( Mineral base)
feedback:EO cannot withstand until 5k mark, engine really start feel sluggish at 4k. not responsive at higher RPM.
change my EO at 4200km interval,the EO is really darker wit full of deposit..
verdict: 2/5

When to change oil also depends on how big is your oil sump. Assuming everything the same, surely one with oil sump of 10 liters capacity will last twice as long as one with 5 liter capacity. That's why European car usually have bigger oil sump.

I'd agree with Optiplex330. Usually recommend my customers to change at longer intervals if they use like 6-7litres of engine oil

4-5 liters or less.

notice how you only need 3.x liters of engine oil commonly?

I want to use Petronas syntium full synthetic for my preve.

what should i use 0W/30 or 0W/40

Well, we have used Mineral on several turbo diesel (tougher on oil than gasoline) and never have problem. OCI was supposed to be 5K but sometime no time to change oil so went to 10K at times. When sold at 500K (other parts of the car are starting to fail), still not consuming any engine oil and never gave any problem so never bother to open up to see what the inside is like. So we never see any need to spend extra on FS.

BTW, we use very good quality Mineral (Delo400). Never Cap Ayam brand or from questionable outlet for fear of fake oil.

Just got a second hand 95' Proton Iswara 1.5, car mileage around 300k++, don't have info about the last maintenance. What engine oil will suit the car ?

which provides better fuel efficiency ?

Got any new oil for me to test... 
Need to change oil for my fish liao...
Petro Canada 5w30 oil still got stock?

Torco TR-5 10w40 semi-syn compared to liquimoly mos2 10w40 semi-syn which one better?

care to give torco (same distro in msia with eneos) and liqui moly a shot? lol

anyone can explain the numbers , and if smaller better or bigger better ?

are we comparing to this oil http://www.lucasoil.com/images/medialibrar...40_MotorOil.pdf

http://www.redlineoil.com/product.aspx?pid=5&pcid=21

redline seems like the best in the pool.. maybe shall give a try on my own if price is within my budget

---

Added on August 7, 2012, 12:44 pmif this model is correct the figure for flash point is also wrong.. 410 deg F = 210 deg C

are we comparing to this oil http://www.lucasoil.com/images/medialibrar...40_MotorOil.pdf

Actually, picking a correct engine oil need not require a rocket scientist or a Phd in Chemistry. All one need to do is, read the car manual and use the oil specified and change at correct OCI. Case closed.

Unfortunately, vast majority of motorist never read their manual. Take a example. There are plenty of Proton car owner but according to the manual, you can use 10W30 but not 5W30 in Malaysia. But 99% of owner don't know that because they never read their manual. May be Malaysian don't know how to read?