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I have been calculating again.
Your TMPS measured 108psi/110psi at 50 degrF ambiënt temp, so not driven this means inside tire also 50 degrF. If then you would have read it when ambiënt temp was 65 degrF the second written would be given by TMPS system, probably rounded to 1 psi, most TMPS give it in steps of 1 psi. And 3th is the presure you read when driving so warmer inside tire air.
The about 10% pressure-rising when ambiënt temp is 65 degrF and driving about 50/55mph, comes from an inside tire temp of 110 to115 degr F in tire.
108 psi /50 degrF, 111.6 psi/ 65 degrF, 122psi/109 degrF.
110psi/50 degrF , 113.7 psi/ 65 degrF , 125psi/112 degrF.
Draw your own conclusions, this all I gave on a " nice to know basis"
Realise that I call myself " pigheaded Dutch selfdeclared tirepressure-specialist" , this to point out that I am not a profesional in tires.
For most Dutch and not American, is already a reason to not trust my given information. But the calculation is right asuming no vollume change of tire by the different pressure, wich it practically is for an already pressurised tire.
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