Start with the door suggestion and fine tune usually based on tire wear.

32/39 works pretty good for me but may start adding a couple psi front to get more even wear up front.

It's one of my big annoyance that car repair places can't seem to read the door jamb and over inflate tires.

Loved the line about feel the color

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)