We have a Galaxy, IIRC it has three suggestions (load related rather
than performance/eco related).
To the OP's pont, whilst it's true that to high a pressure will increase
tyre wear in the centre, I think that will be for significantly higher
pressures, not a few psi
Only if much higher than required for the load.
Which is why there are generally two figures given - one for light
running, one for fully laden.
Generally, the higher one is to cover the possibility of running at a
continuous high speed at full load.
A too low pressure can cause a heavily loaded tyre to overheat and fail.
Too high may cause uneven wear. So it's better to err on the high side.
*For every action, there is an equal and opposite criticism *
Dave Plowman email@example.com London SW
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