The recommended tire pressure for an Infiniti vehicle can vary depending on the specific model and year, as well as whether the vehicle is loaded with passengers or cargo. Generally, the optimum tire pressure is typically listed on a sticker located on the driver's side door jamb or in the owner's manual. Most Infiniti models suggest a tire pressure range between 30 to 35 psi for normal driving conditions. It is crucial to check the tire pressure when the tires are cold, as tire pressure can increase with heat generated from driving. Additionally, maintaining the recommended tire pressure can enhance fuel efficiency, improve handling, and extend the lifespan of the tires. For the most accurate and specific information, it is advisable to refer to the vehicle's documentation or visit the current Infiniti website where detailed information can be found.