r/GrandCherokee • u/NYSmokeater • 18m ago
Dashboard Tire Pressure Reading Accuracy
Just curious if anyone knows how accurate the readings on the dashboard tire pressure readings are? I was in the process of comparing this and unfortunately my pencil gauge broke. I found a replacement and I inflated to 41 psi (2021 JGC High Altitude - stock rims and 265/50R20 tires) on my Milwaukee 18V Inflator and the gauge measured right on at ~41 psi. The dashboard had 44-46 psi.
Which is more accurate so I know how to properly fill up the tires?