Xk8 19 inch wheels can I lower tire pressure

My 1998 xk8 17 inch wheels had an optional comfort tire pressure setting.
I find my née 2003 xk8 with 19 inch wheels does not list a second comfort setting, pressure drop on 1998 made a great difference any suggestion on the 19 spec is
Front 32 psi rear 34psi


I think you need the XK-8 Forum (click on Forums above and scroll down) this one is for those old XKs (120s, 140s & 150s and the odd one who owns an XKSS).


Thanks for the response I’ll swing over to the proper site.