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As mentioned in other topics previously, a tire is typically engineered and tested thoroughly within its documented recommendations. When a tire is stamped with its rating, it means that it was tested for bouncing, cold, heat, weight, stress, turning, load rating, storage, handling, and a bunch of other stuff and the tire meets the rating under those conditions. THEN it must be paired with a vehicle or trailer that has a specific weight and utility rating. This is why certain vehicles get certain tires, for example - race cars get wide tires, trucks get LT tires, trailers get ST tires and passenger tires get P-series tires.
Exceeding any requirement is risky, for example, overinflating, over-sized, different type or underinflating a tire different from what a vehicle needs, or what is a tire's rated recommendation. This can cause handling problems and product problems during any one of the criteria under what it was tested. On the surface that's why we should stick to what the specs are AND how you actually use it.
What this topic has revealed is that there a very limited cross consideration. For example, an LT tire CAN satisfy an ST need as long as the consumer knows how to substantiate that the LT tire meets or exceeds its ST tire counterpart. I don't think this applies anywhere else, like putting a P-series or ST tire on a truck does not help a truck, putting anything other than a P-series on a car is not applicable and wide, low profile tire belongs on a trailer. Doing this will absolutely require changes in suspension, wheels, brakes, etc. An example of this is a truck with large tires also requires a much different suspension.
We must be very careful how some of our justifications are determined - for example, nothing falling out of the kitchen may not be caused by softening tires. The kitchen items falling out in comparison to others could be because you know how to pack the heavier items at the bottom of the cabinet or away from the doors or you use sticky pads on the shelving to prevent movement or your cabinet latches are stronger, etc. This should not be fixed by changing the pressure in the tires, because underflating the tires COULD create a bigger problem.
I like that this topic is allowing others to admit their usage, so it can be promoted or demoted in favor of what's right and what's safe. Collectively we all gain by becoming more aware and helpful.
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