Where can i get a decent set of tires for my oem 18's i just want something cheap to get me through a couple of months. Also im coming across conflicting info. Whats the best size to run on OEM 18's i know they are 18x8 all around and only the OEM tire sizes are staggered not the rims themselves. I was thinking about getting 245/45/18 all around, but would i be able to get away with a 225/40/18 in front and 245/40/18 in rear? im so confused about these tire size things!

 

I have a sedan with coupe 18s, and I run 225/45 and 245/45 with absolutely no problems. You should be fine either way, as I have seen people run 245s all around and 235s all around. Hope that helps.