Welcome to the Nissan Patrol forum. To post a question and to see less adds on the forum then you will have to register
first. We are an easy going friendly forum so join in the conversations and feel free to ask any questions.
Become a forum sponsor for only $20 and see no adds with faster page loading times and many extras benefits.
I think most 4x4 tyres are supposed to be run at 40-45 psi for normal tarmac driving. I could be wrong and please tell me if I am, but I have run under this assumption for over 20 years with no ill effects. At the moment I run my 65 series ProComps at about 38-40 for a bit of comfort and have not noticed any abnormal wear.