I have a 05 infiniti g35 with R050A potenza tires 19 inch i set the tire pressure to 40psi all around and the max pressure for the tires are 51 but at 40 psi the car seems to studder and shake back and fourth looks like the tires are rubbing or something what psi should i set them at?
You best get your vehicle checked at a reputable tire store. You may have more than just tire problems. Also, keep your tires at recomended pressure, they are engineered to ride at the proper p.s.i.
