Any blue smoke on cold morning start ? and during acceleration/decelaration ?

Mostly white smoke on cold morning, didn't notice any smoke on acceleration might be too little to notice and no stain on plugs

This white smoke of yours on cold morning start, is equivalent to 'blue' smoke I enquire about.
As stated above and I quote:

This white smoke indicates your car engine valve seals are hardened , and leaking oil from cylinder head into combustion chamber.
IF there is coloured smoke during acceleration/deceleration, it indicates piston rings are leaking engine oil from combustion chamber to engine crankcase.

This post has been edited by zeng: Oct 15 2017, 09:34 PM

not claiming ur wrong or anything, but leaky valve seals should burn blue(ish) smoke regardless HOWEVER possibly ts cannot tell it apart cause theres too much condensation to go with....

anyway given the severity of the issue, if it was a valve seal leak, it would show itself VERY obviously when decelerating (rev up, then release throttle, while the rpm's drop, you will see a cloud)

or you know... option B is easy.... 15 min job, check your plugs... leakky valve seals would completely foul up your plugs

You may have a point in water condensation playing a part with white smoke on morning start , though not expressly saying so.For all we know, there may actually be some condensation.
On top of that Senscents seems happy with spark plug conditions.

However as his engine is consuming like 0.7-0.8L engine oil in about 8000 km, plus the fact that 'bluish' colour smoke is very difficult to 'see' by untrained eyes , hence my position above on valve seal leaks.

Coloured smoke during quick acceleration or quick deceleration , in my humble opinion, would indicate engine oil leaking through stuck piston rings . I wish he can get someone to test this possibility for him.

ohh didnt realize he checked his plugs..... cant really think of any way to check rings other than a compression test.

assuming its really not mixing with the coolant and not literally leaking out.... cant think of any other way its getting out.

check at the exhaust whether there are this black smoke stuck there.

no need to start the engine.

Yeah the spark plug still holding up after a year or more cant really recall when was the last replacement, as i just service the car 3days ago. Ask the old mechanic, i think he's about 65 years old on the codition of the plugs. He says that it's still good to go, need not change since the engine are running smoothly.

As the oil consumtion still manageable, maybe can save on the repair works. Guys.. How much oil consume to warrant it as excessive & need to repair.
Maybe i'm using the 5-30 oil. too thin viscosity ?

ols stick to your factory recommendations, thx.

thinner oil does not mean better, too thin and very bad shit like your cams get eaten.....

What's the car model and odometer reading ?

Tq. I thought + - 10 viscosity should be alright. Being using 30 grade for the last 2 years.

Wira 1.5 auto. Odo 300k+. Still holding up.

My wira 1.5 had been on 15W40 since a top overhaul in 2003 or so, no noticeable oil leaks at 7000-9500 km oil change.
Last May switch to Total Energy 10W40 at good bargain .
Why not consider Petronas 3000/Supremo 15W40, as it may help with your oil consumption problem.
I wouldn't touch a xW30 in a 300k wira.

This post has been edited by zeng: Oct 17 2017, 12:19 AM

Tq.for the recomendstion will kiv.