Best tires psi?

[Yaris_PR]

I have 195/55/15 tires. What psi will be perfect on those tires???

[TOLMACH]

I actually have the same question for 205 40 17, please.

[malibuguy]

take tire temps and adjust as neccessary. in my stock goodyears i run 54psi

[CrankyOldMan]

take tire temps and adjust as neccessary. in my stock goodyears i run 54psi

Temperature? What's the ideal range?

[sparkin88]

All depends on what your doing.. What kind of tires/ what their rated at.

Stock tires. I'd say 38-40 front 36-38 rear for regular street use. Just my opinion.

But every tires different.