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TPMS range

Old Sep 1, 2020 | 07:16 AM
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TPMS range

Hello, I noticed when riding empty, my rear tires are only getting center wear at the factory 80 PSI. Last night I aired them down to 65 psi, and now am getting the tire pressure warning light. Anyone know what the minimum air pressure is to not trigger the light? I don't have Forscan (yet). 2020 F-350

 
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Old Sep 1, 2020 | 08:02 AM
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I remember someone saying 10% of what the door sticker says. I’d go up a pound or 2 in increments. But forscan is a must. Mine goes off at anything under 40psi now.
 
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