G70 - TPMS

[G7019]

Anyone see major discrepancies in tire gauge and tpms readouts? Trying to figure out which is more accurate/which I should follow. I’m seeing about a 3lb difference between gauge at tire (cold) and dash (cold). Been using the same gauge for years. Any insight is much appreciated.

 

[Husky]

I think my readings were within about 1psi.

 

[G7019]

I think my readings were within about 1psi.

Aha. Thanks. May be time for me to pick up a new gauge.

 

[Volfy]

Regardless of how accurate TPMS readings appear to be in the dash, they should be used for safety check only and not for setting tire pressure. Some mfrs do ambient temp compensation, so you never know how the readings are calibrated in any instance. Besides, if you are comparing two different gauge/sensors, you don't really know which one is more accurate anyway.

I keep a precision dial gauge in the garage and use it as reference for pencil-type gauge I keep in each vehicle. I keep a record of what each pencil gauge reads at the same reference pressure on the precision dial gauge. I can then used each pencil gauge to set tire pressure accurately/consistently even if I'm not at my own garage.

Occasionally, I recheck several of the pencil gauges against the precision dial gauge, to see if the references have changed.

 

[G7019]

Regardless of how accurate TPMS readings appear to be in the dash, they should be used for safety check only and not for setting tire pressure. Some mfrs do ambient temp compensation, so you never know how the readings are calibrated in any instance. Besides, if you are comparing two different gauge/sensors, you don't really know which one is more accurate anyway.

I keep a precision dial gauge in the garage and use it as reference for pencil-type gauge I keep in each vehicle. I keep a record of what each pencil gauge reads at the same reference pressure on the precision dial gauge. I can then used each pencil gauge to set tire pressure accurately/consistently even if I'm not at my own garage.

Occasionally, I recheck several of the pencil gauges against the precision dial gauge, to see if the references have changed.

Thank you. Already ordered a newer more
Accurate gauge.