I need to replace one of my OEM rims that has a small dent that's causing me to refill the air every other day in the winter.

I'm seeing a lot of conflicting information, are the wheels in the front different than in the back? If so, I've never taken that into consideration when rotating them.

Thanks in advance for your help!

 

Welcome and first off, have you taken this damaged alloy to a wheel repair specialist in your area? They can assess the damage, and perhaps repair it to prevent the tire from deflating. I also own a G37xS and as equipped from the factory, all four wheels are 18 X 8.0" for rotational purposes.

 

While I haven't taken it to a wheel repair specialist, when I was getting all 4 tires replaced at a reputable shop, they rolled out the damaged rim and said given the location it's not fixable.

Regarding the sizing, are you positive it's 18 x 18.0"? In the thread that's stickied in this forum, it says the non-sport is 18 x 7.5" all around. Is the xS considered Sport or is it just Sports Appearance for this purpose?

 

All four wheels on the xS Sedan were 18x7.5".