Issue link: https://read.dmtmag.com/i/34500
You should always use an accurate pressure gauge to determine the pressure inside the tire. Running the MICHELIN ® X One tire helps provide an ® additional visual identification of significantly underinflated tires. Compare the difference between the MICHELIN ® X One tire at 30 psi and the inside ® dual at 30 psi. Since many fleets run pressures higher than the recommended values in the manufacturer’s data book, it can be confusing as to when a tire should be considered run-flat. A conservative approach would be to use 80% of the fleet’s operating pressure as described in the table below. Fleet Pressure 130 125 120 115 110 105 100 95 90 Run-flat (80%) 104 100 96 92 88 84 80 76 72 Inside Dual (left) at 85 PSI and Outside Dual (right) at 30 PSI MICHELIN X One Tire at 30 PSI ® ® Permanent tire damage due to underinflation and/or overloading cannot always be detected. Any tire that is known or suspected to have been run at 80% or less of normal operating pressure and/or overloaded could possibly have permanent structural damage (steel cord fatigue). Ply cords weakened by underinflation and/or overloading may break one after another, until a rupture occurs in the upper sidewall with accompanying instantaneous air loss and explosive force. This can result in serious injury or death. MICHELIN X One Tire Maintenance 41 ® ®