it might kill your tire faster.
if primacy is what you after... 80k km only change new set is not abnormal yea...

You free to play around 200~280kpa and i think you mean kpa? Cause normal tire has 300~350kpa max or 40psi max (cold air)

Primacy can last about 80k, PS can last about 50k

Both under normal drive yea...

common sense a bit can or not?

my bad then, air pressure is good?

I was using altis back then air pressure at front 240kPA; rear 230/220kPA. This air pressure thing, you need to feel with your butt on the best combination when coasting, over holes / bump. In Altis 10th Gen, I feel it was the best combination.
Pen <--> KL once a month.... speed about 130+
Then changed to PS4 used for 30k then sold off the car due to MCO and not back to office until today.

Having another myvi with me on PS3, can use almost 60k still not touching the 1.6mm yet but changed for peace of mind.

+edit: Yes that was Primacy 3, then I changed to PS4 after Primacy almost touching the 1.6mm

This post has been edited by blindmutedeaf: May 28 2024, 08:38 AM

Agree to what zeng mention. It could be your alignment issue and your tyre pressure could be on lower side,
but again it is about the feeling - IMHO, the factory recommended air pressure is the minimum, and when coast, can you feel your car wanna slow down or maintain the speed is the key; if it wanna slow down then your air pressure is low.

Secondly, do you fetch a lot of weigh in your car such as boot full of equipment, always full load and etc?
Meantime can you describe how your tyre when it is fully used? It is eating a side (the side nearer to car body or facing outside) of the tyre or as a whole?

If as a whole, still most likely air pressure / high load, if a side then you have some other problems.