Mine consume around 250-300ml, top up once app. 4000+km then around 8000+km it will drop to the middle/slightly below mark on the dip stick and its time to change to new oil. Any concern that i should note or rectify. Tq

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

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 ?

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.

Tq.for the recomendstion will kiv.