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When to check tire pressure. Hot or cold

Donna_and_Rob
Explorer
Explorer
First thing in the morning the front tires show 100psi about five miles later they show 110psi. Which should I go by? cold or hot.
I'm thinking hot.
2003 38ft Travel Supreme
350hp Cummins
15 REPLIES 15

ScottG
Nomad
Nomad
Cold. The tires are designed to heat up and increase in pressure.