Would any of you advise riding on the 18's permenantly? Even in Winter months, or would you switch up wheels season wise!?

 

I am switching back to 17s for the winter. Wider tires on the 18s will push the snow more. Also, you are more likely to f**k up your rims in the winter.

 

with all season or summer tires? if its summer tires do not do it, your traction will really suffer. the summer tires are usually uni-tread and do not grip as well in the snow. if you get all seasons for the 18's its not that bad and probably won't notice a big difference.