Father vs. Son: Who's Right About Tire Pressure? RSSDear Car Talk Feb 23, 2016 (Archives) tiresDear Car Talk: My son's car is a 2010 Camaro. It has Pirelli all-season tires on it. The sidewalls of the tires say 50 psi, but the service tech said to put in only 35 psi. Who's right? We put in 35 psi, and the c...