how much psi in 215/40/17 tires

it says the max on the tire is 50 psi but i’m not quite sure how much to put in. How much do you guys put in for normal driving? thanks

about 40 or so

on my 205/45/16 tires i put about 30-35.

tire psi

I’m an asst manager at Discont Tire Co. and i run 205/40/17… i set my psi at 45.