TPMS vs Gauge
I just got finished checking all eight of my tires. With gauge I'm reading 95 in duals and tag and 105 in front (275/80-22.5 H-rated Michelin XZR3) and my TPMS (Pressure Pro) reads 93 in rear and 102...
Forum Discussion
"Now, as far as the accuracy of the tire pressure monitoring system (TPMS) is concerned, the internal tire pressure sensors are relatively accurate compared to your typical $2 gas station tire gauge (+ or - 1psi according to Johnson Controls, which makes millions of OEM TPMS sensors)."
From google.
From google.
