Correct pressure for non stock size

[weebl]

I will be putting on the winter tires for the 2004 Impala today. Stock size is 225/60R16 with 30 PSI on the placard.

I am running 215/65R16 (for a variety of reasons, including availability, slightly lower price, compatibility with chains I had from a previous vehicle, theoretically better snow traction and having a more common size I can have a better chance of using on another vehicle if I choose to ditch the car early for some reason).

Should I use a different PSI?

 

[cb_13]

I would run 35 psi but to be fair I would have ran 35 psi in the factory size as well.

 

[Craig in Canada]

This might be useful https://tiresize.com/pressure-calculator/

 

[weebl]

Based on the calculator, no change in pressure.

 

[Kawiguy454]

Tires have min/max on them for a reason. Lower pressure for snow traction and higher pressure for lower roll resistance when it is nice out. Its your choice. The tag on the door is a OEM litigious safe starting point so the completely clueless don't hurt themselves. A TI99 scientific calculator is not needed

 

[BLND1]

Run a chalk test on the tire.