QUOTE(kidmad @ Dec 4 2012, 05:16 AM)
Well my knowledge is pretty limited in this area but from what I know and have been reading... some peeps who are using lower viscosity oil they gotta top up the engine oil occasionally because it got heated up too quickly and evaporate in their turbo charge ride turbo charge ride.
Also why would GTR and some other top performance car recommending 10W-60? base on your theory shouldn't they be using something lower?
http://www.nissan-techinfo.com/refgh0v/og/gt-r/2013-Nissan-GTR.pdf, please refer to page 280...never mention 10W/60..only 0W/40.. so what make you think the preve cfe low boost turbo need xW/50??

Added on December 4, 2012, 12:11 pmQUOTE(chinkw1 @ Dec 4 2012, 12:23 PM)
Not many ppl use Delphi Engine Oil in Malaysia?
Singapore is very popular.
because delphi oil is made in singapore or and some from thailand
Added on December 4, 2012, 12:33 pmQUOTE(boonykun @ Dec 4 2012, 05:02 AM)
but if rew-ing too hard on the turbo = oil may be going thinner, hence getting xw/40 wouldn't be much safer in case long distance / long term "harsh" driving? or is there any diff in both?
nevertheless, for service centre proton that accepts other oils, try Proton service centre @ puchong, proton edar~ Dumped Castrol Edge 5w/40 into my prevee this morning... Much Much better then previously using Synt 800 +_+"
Let's compare this 3 technical datasheet , a) petronas synthium 800 10w/40, b) castrol edge 5W/40 & c) mobil 1 5W/30
a)
http://www.mymesra.com.my/microsite/lubric...00SM_10W-40.pdfb)
http://www.opieoils.co.uk/pdfs/castrol/cas...-edge-5w-40.pdf ( assume this is the same as what we get in Malaysia, cannot get from castrol malaysia website and that is the reason why i never use castrol)
c)
http://www.mobil.com/Malaysia-English/Lube...bil1_5W-30.aspxLook at the flash point (higher is better), which among 3 got better number? why? Fresh oil will get thinner with heat ... but lousy oil will get thicker when expose to heat ( oxidation, sludge and carbon)
why you feel better with castrol edge 5W/40 compare to synthium 800? first is because of fresh oil and filter, second, look at the kinematic viscosity at 100 deg C... castrol is thinner , thus you feel much better.. I believe by going to xW/30 you will say WOW!!!
p/s I am not marketing any of above mentioned oils..
This post has been edited by pumpman: Dec 4 2012, 12:59 PM