DTASFAB wrote:No, the sidewall of the tires only lists the MAXIMUM safe PSI for that particular tire, which is virtually guaranteed to be significantly higher than the vehicle manufacturer's recommended PSI. If the tire size, load capacity, and speed rating are all the same as the OEM tires, you should still use the number recommended by the manufacturer, even if the maximum PSI listed on the tires is different. This is why Costco is so anal about following the recommendations of the vehicle manufacturer, not the tire manufacturer, after the lawsuits surrounding the Firestone/Ford Bronco fatalities around the year 2000.
yes i know it lists the max. you have to make the conscience decision to go from there. if the sidewall says 44-46psi max, and your sticker says 32psi - a lot will depend on the ambient temps. thats 12-14psi difference. 12-14psi difference is 1/3rd of the overall psi.
during summer months, id say stay far away from the max psi. in the winter months, id say increase the psi slightly to round the tire more, and to fight the colder temps.
the firestone problems resulted due to people not checking their tire psi's.