U changed already?
How did the oil perform compared to your old one?

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Added on August 19, 2007, 7:21 am
The Hydroclear Diamond 5W-30 is fully synthetic, no?

10W-60 is too heavy for high reving engines. You should not use anything heavier than 0W-30. The heaviest you should go is 10W-40 to avoid straining the internal engine components at high rev. I guess when you converted your engine you don't get the Mivec manual that says only use 0W-30 engine oil. Same as all the VTEC engines, light oil is best and less stress.

The protection properties of the engine oil is not directly related with its viscosity. Honda recommends it's own 0W30 or 10W30 engine oil for VTEC. Mitsubishi recommends the same for all of its engines, including the EVO. Subaru recommends 0W-30 too. Only time to use a slightly thicker engine oil like 10W-40 is when the car is used in very hot enviroment like deserts.

Is Shell Helix good?

Which 1 better? Helix Plus? Helix Super?

Wat engine oil r u using now?

How about Mobil? try b4?

There is a reason for the price difference. Try lighter engine oils and it will even be more happy to rev.

I'm driving LMST.. I already REV above 4k rpm.. What engine oil is suitable? current I just using 10/40w semi synthetic oil. (bProton SC shop brand).

Rev above 6k-7k? 4g13p can take this 6k-7k rpm? Hehe..

I saw another forum, they all recommend Mobil,

For me, I just don't wan cheap oil, n not heavy....any recommendation?

I rev high once in a while, maybe once a week, or twice a month to maintain the power.....

I prefer better torque...any idea?

The brand is called Q8. Top of their line is called Q8 Formula 1. Yes, it is getting difficult to source as it is expensive and not very well known here. My workshop still has a source for it.

Marketing. Why don't you check the oils from the largest Petroleum companies and they do not need to associate themselves with 'racing' or 'sports'. Well, at least I know that their marketing strategies are working on you.

He most probably think that by going full throttle for 20 seconds and shifting at from 2nd to 3rd at 7000 rpm is racing and that he needs to get engine oil that has the word 'Racing' or 'Sports' on it. I guess he's never tried pushing the car all out at 7000 rpm from 2nd gear to 4th gear and repeat that process 15 times in Sepang per lap for 30 laps.

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Added on August 21, 2007, 4:40 pm

LIke I said before, if you take your car into the track, your 10W-60 engine oil will feel like 0W30 and will be the same like any other 0W30 engine oil. When you take the dip stick out, oil actually drips like water. So on heavier engine oils you can use it for racing without a problem but when you use it for street, the additional stress actually slows down the engine.

Anyway, go and list all the engine oils you want. I've used Castrol 10W-60 for some years believing that the extra heavy oil will help protect the engine but only to find out that Castrol RS (now Edge Sport) is not the best engine oils around. Its quality is about the same as expensive semi-syn. That was when i stopped using it.

btw, when it is too heavy also
it will bring harm to the car because the pump need to work extra and the engine oil wont reach the crucial parts of engine.

i suggest u to visit autoworld forum in oil section and bobistheoilguy forum

at the moment, for me
i will use max Xw-30 oil.
for 50% town 30% highway 20% redline driving.

1 more, u have to understand the cert on the oil also
like the   
    * ACEA A3/B4-04
    * MB p. 229.5
    * BMW LL01
    * VW 502.00/505.00
    * GM LL A025 / B025

this cert can give u a lot of info in choosing ur engine oil.
eg: BMW LL01 - LL-01 is only for Group IV or Group V based oils.