Accurate tire pressure readings can only be taken before you drive on them, when they’re still cold. But are you SURE the readings are accurate, even if you haven’t driven on them yet today? Maybe you shouldn’t be so sure.

Most RVers, especially us DIY types, are meticulous about maintaining correct tire pressure. But even if you’re diligent about checking your tires before every trip, this short video could help you avoid accidentally running them under-pressure.

We figured this out by chance many years ago, but we never see anything written about it. We were sometimes surprised at the dramatic difference in pressures between tires, even after confirming that were the same just a few hours earlier, without having moved the RV. We thought we should share this important detail that might never have occurred to other RVers either.

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