OOoo noted thanks!Viscosity thicken or thinned according to temperature, if the manufacturer recommend 5w40, they mean it to be at max 100'c. And with every 10'c increase, like to 110'c then you should go 5w50 for it to act like 5w40 at 100'c.
If you see 120'c then you should choose w60 and so on, something like that.
mine usually hovers around 80+ degree after warm up and normal driving with occasionally boost
so can use w30 eh? i'm on w40 now
if i drag gears then will go up to 90 or 100+ of course but seldom la
usually
Just wondering why nobody recommends the manufacturer's own oil?
Honda, Toyota, Lexus and Mercedes all got their own oil, iirc
If you want the best fuel economy for your car, just choose the thinnest oil that your owner manual recommended. Usually it is 0w20 or 5w20, so go for it, no point save $20? on getting 5w40 and yet pay $5 extra everytime you pump petrol by losing mileage. From w40 to w20, usually you gain around 30-60km per tank.
Labour cost for oil change at mxtradings are $12. So for example
Pennzoil Ultra Platinum 5w20 $16 x 4quart = $64
oil filter = $6
So total = $64 + $6 + $12 = $82
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noted bro...
so if assuming i bought from my engine oil from somewhere else for eg, Giant then bring to your shop, will the charge still be 12 + 6 = 18 ?![]()
wah, mai tu liao, next oil changeDefinitely, at 80'c+ your w40 will be acting like w60, you definitely can go w30 if you want to gain more power and FC.

Just wondering why nobody recommends the manufacturer's own oil?
Honda, Toyota, Lexus and Mercedes all got their own oil, iirc
usually i can only feel the "new engine oil" for a short while. Engine seems more alive for a few days. after that, it goes back to feeling normal.
This was tried with several brands from Amazon. I guess engine oil really not much different ba, unless u driving some sports car.
Sorry the price quote are for our customers only, not for outside oil.
noted.
can recommend me the cheapest 5w40 4 quart of engine oil pricing please? beside the standard labour fee 20 and filter 6![]()
shell 5w40 4L at $39 not good enough? go to giant.
Last I heard those are rebranded. May do a search.Just wondering why nobody recommends the manufacturer's own oil?
Honda, Toyota, Lexus and Mercedes all got their own oil, iirc
Why would you change it every 7500kms? Modern cars all have change intervals of 10000km and above.$10 per quart is cheap. Can change every 7.5k km.