Tires: tire pressure, proper inflation pressure, correct tire pressure

Question
I have just purchased a used Dodge Caravan (2001). Could you tell me the correct tire pressure and if the pressure should be the same in all four tires?
Tire size is P215/70R15 all season times
Thanks...BM  

Answer
There is a placard on every vehicle sold in the US that has the proper tire size and the proper inflation pressure.  Usually the placard is on a door post or in the glove box.

Personally I like to use 3 to 5 psi above the placard.  I get better fuel economy, better tire wear, better wet traction, better snow traction, better steering response, better tire durability, and only give up a bit of ride harshness.

“They” say you should check your tire pressures once a month.  Don't trust the guys at the shop to do it.  These guys are paid by the hour and this is one of the easiest things to shortcut.  Besides, there are a lot of mechanics you don't know where to look for the proper inflation.  No, it is not on the sidewall.

I think you'll find the pressure listed on the placard is 35 psi.

Hope this helps.