200 or 220 is a bit too low for most typical passenger car tyres , more so if fuel consumption or sluggishness is of concern to you .

Give yourself up to 260-280 to 'feel' the improved fuel economy , never mind tyre brands .

Majority of tyres sold in Malaysia has a maximum pressure rating of 51 psi .
Hence most are them are recommended by tyre manufacturers for operating pressures as high as 44 psi and speed as high as 220 km/hr .
Generally tyres are over-spec'ed for day to day use .
IMHO, over-inflate from vehicle OEM recommended 29/32 psi to 40-44 psi say, is well and good within spec but over-pressure up to pressures higher than 51 psi is NOT .

This post has been edited by zeng: Sep 12 2020, 08:21 PM