[Y3MUR]

Going away on a long trip i just want to adjust the tyre pressure to the correct setting, 2 adults 3 kids with a roof box. My tyre size are on the picture
275/35/21 being the rear and the other front.

Which one is it?

[moonshine]

Is the higher of the pressures a sustained high speed (i,e Autobahn) pressure?
My Porsche has a high speed pressure setting that is >> comfort pressure
Or is the sticker saying it is "possible" to have 275/35/21 on front or rear, and the laden pressures are 35psi if on the front and 42psi if on the rear
For the 245/40/21 size, again possible on front or rear and the laden front pressure is 39psi and laden rear pressure would ne 42psi

I would say pressures for a laden car are 39psi on front 245/40/21 and rears at 42psi on 275/35/21

[MyfirstBMW_X3M40i]

Originally Posted by moonshine

I would say pressures for a laden car are 39psi on front 245/40/21 and rears at 42psi on 275/35/21

yep, I would agree

[Y3MUR]

Originally Posted by MyfirstBMW_X3M40i

yep, I would agree

Originally Posted by MyfirstBMW_X3M40i

yep, I would agree

Thank you