P205/65R15
low tire pressure in one tire
The rim will bolt up to the hub but the tire and rim stick out beyond the wheel wells by about an inch with the 18". The 17" (SL) wheel is a better choice for that year than the 18" (SE).
32 PSI
Unplug the tire pressure light cable.
Check the sidewalls of your tires. It is "printed" there.
According to the owners manual, the correct tire pressure is 29 psi.
215/55/17
Tire balance or tire belt separation (bad tire) would be my guess. check your wheel balance
Read the side of your tire. It will tell you on there.
33 Front and 30 rear for the p215/55r16
I have a 2003 Nissan Maxima GLE and the standard tire is a P215/55R17. incase you have a different model you can put your information in here and it will tell you what tires you can use. http://www.goodyear.ca/goodyeartireselectorca/index.jsp Good luck.