The slimmer the better. Stock size works fine
Preferably the same size. Just because they are winter tires it doesn't alter the size requirements.
195/60R15
P215/70sr16
No need to change sizes with winter specialty tires. If your vehicle came with p235/75r15 tires, you can install the same size in a winter tire. Congrats on selecting a superior traction tire for safe winter driving, I suggest looking into the Nokian line of winter specialty tires if they are available in your area.
215/70-16
First off you should not install tires that are not the correct size. But if you do, make sure the tires on each axle are both the same size. Both front tires same size, and both rear tires same size.
We would need to Know WHICH Saturn and make and size of tire. The pressure is the same whether they are new or old tires.
Yes, just be sure all the tires are the same size and put winter tire on drive axils, never use different size tires on a 4x4 all four must be the same size, or you will damage transmission.Answeryes
18
215/70R15
225/60-16
Open the drivers door and on the latch pillar is an information sticker that shows the original size tires on the vehicle from the factory