You probably overread my post here ( end of page 1, post #10) about calculating the lowest pressure yourselves. Because the tires are probably overrated you mayby may go verry low on the road , and so dont have to be afraid of damaging your tires on the way home. But first calculate it , I...

I will not introduce myself in an opening-topic becaus I yust want to answer your question. I have been busy with calculating tire-pressure with the same system that the car-and tire-manufacturers in Europe used up to 2000. They are still using the same Equation but keep it extremely high...