Quote:
Can I put a different size on the
same rim?
You'd be limited to 13 inch tires, you can't put 14" or bigger on a 13" wheel. You can get wider and taller, but the 13 number has to be in there to fit your 13" wheels.
If you want to go to bigger tires you'd need appropriately sized wheels.
Quote:
165/70R13 tires and it looks like almost
nobody is making this size anymore..
The US parts catalog shows these as original sizes:
185-60-14 (Si)
175-70-13 (DX)
165-70-13 (std)
TireRack.com has matches for the 175-70-13 size, so there are some available choices. Winter choices too. Low low prices!
http://www.tirerack.com/tires/TireSearchResults.jsp?width=175%2F&ratio=70&diamet er=13
I entered the 165 vs 175 tire sizes in this sites calculator
http://www.discounttire.com/dtcs/infoTireMath.do , and came up with about 1.6 difference at 65 MPH.
Wait, you're in Canada aren't you? Um, check your tire dealers sites up there. The 175 size should be available nonetheless.
HTH