Keeping your vehicle's tires ... your PSI to the third decimal point?). So it's not exactly news to tell you, dear reader, to get make sure your tires are properly inflated. But, as Goodyear ...

Goodyear has developed a new self ... higher-than-normal pressures found on large truck tires. Most commercial vehicles run an average of 105 psi compared to the 32 psi of passenger cars.