On a 2007 Corolla–just through trial and error I found out that it tended to mitigate the car’s alignment problem (I believe there is a toe condition) and also
the poor condition of the tires: the tires appear to be in poor condition and plugged many times,
one or two of the tires appear to be defective as well (before I rotated the tire to the rear, it would cause the steering wheel to vibrate.)
I believe that 45 psi tended to wear the tires on the center line, and this tended to mask the tire defect…
SO far, so good—not a permanent solution but… I’m liking it!
45 psi also means lower tire rolling resistance. that’s a win-win.
Just thought I would share this little tidbit.