I'm not sure you got what I was trying to say. Did the rest of you guys get it?
Yes, tires get hot. WHERE they get hot (across the width of the tread specifically, but the sidewall temps are meaningful also) will tell you a ton about what you need to know about your inflation levels and a lot about your alignment too.
There's a big factor that isn't totally taken into account when simply going off inflation charts or door stickers, that's the tire itself. Different tire designs, brands and even tire age will change what the ideal running pressures should be. Door stickers don't designate between M/S, A/S, L/T, Summer Truck or Highway tires. All of those would have different ideal pressures even in the exact same size and load range.
Using tire temps to adjust pressures and alignment is the definition of "Not guessing". It obviously takes more time and knowledge than simply going by vehicle weights though.
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