In the early days of power steering introduction , as similar to pre-power steering days , steering at high speed driving becomes lighter or over-sensitive .

Later days power steering 'technology' has overcome that 'lighter' problem during high speed driving .

I am guessing your 2002 volvo should fall under the latter category of 'not lighter' steering at high speed .

Do you face the phenomenon of uneven tyre wear pattern persistently in this 2002 ?

This post has been edited by zeng: Sep 14 2020, 09:22 AM

No, I mean your steering at high speed driving should not feel lighter , but harder .

What you describe with your volvo is something undesirable which OEMs' has had overcome with newer steering 'technology' a long long while ago .

It is good to know your tyre wear pattern has been even . Anyway, I suspect your vehicle caster angles has (typically) since 'lari' in 18 year usage and the caster angles has become less 'positive' or more 'neutral/negative' which you may check in your next brand new front tyre replacement.

Meanwhile , you may wish to ensure front tyre pressure is kept low at OEM specified 200-220 kpa and not 260-280 kpa (though within spec) .

Btw, what is the front tyre pressure reading vs front door pillar recommended tyre pressure ?