QUOTE(empoleon @ Jun 10 2022, 05:22 PM)
My 4 year old tyres has covered 22000KM on 2018 Honda City.
Using Goodyear GT3.
I checked the front tyre depth it's 3.5mm and rear is around 2.5mm.
Is it supposed to wear out this quickly?
And why the rear wears out faster than the front? Only 2 people in the car most of the time, otherwise 1 person only. Nobody sits behind and don't carry anything in the boot.
Hmm this is interesting. As pointed out by @andrekua2 if the service center might have rotated for you. This could explain why your rear is such low.
Technically due to a front driven car, your tire in the front which is doing the traction work should wear much faster that the rear. In fact your rear usually ends up having almost 2 or 3 mm more when your front tire reaches end of its life.
To investigate further we need to know the wear curves. Is the tread depth all constant from left / center / right? This could give us a hint whether are you having any irregular issues.
Also I have written the importance of
rotating tires & also
How to increase your tire life span feel free to check it out.