I just changed my after market winter wheels/tires back to the original wheels/tires this weekend on my 2004 Rx-8 AT Sports pacakge.

I noticed that the OEM rims had noticable corrosion spots all around the outer rim on the inside.
The aftermarket winter wheels I got from Tire Rack had no signs of corrosion yet they are used in salt and snow ??
It's not a big deal because the corrosion on the inside is not visable, but still I don't like it.
Anyone know why the OEM rims are corroding yet the aftermarket ones are not, do I have a claim with Mazda maybe ?

Got pictures of corrosion?

I can take some, not sure how to post them here ??

To upload pictures:

on the bottom of "Submit Reply" and "Preview Post" button, it says "Additional Options", Click on "Manage Attachments" in "Attach Files" section, then a window will pop up where you can browse the file(s) to upload, then click "Upload".

Here is a photo of the rim corrosion, after looking at it again it appears that this inside is not anodised (Or treated/coated - whatever is used to for protection)

This is the first I have heard of corrosion on RX-8 rim. this occur on all four or just one?

I do not think the OEM rim are anodized, just painted silver.

Some Mazda 3 owners has similar issue with their 17" rim, and among them, few were able to get the dealers to replace them under warranty, perhaps you can try that too.

http://www.mazda3forums.com/index.php?topic=42873.0

I am also seeing some corrosion on one of my OEM wheel. I have an 18in Shinka wheels (they're a little darker than standard) and around where the center caps insert into has paint bubbling and rust showing through. The car has only 9500mi on it and I don't drive where there is a lot of salt. Should I get it covered under warranty?

Guys,

I have the same problem, only mine seems like MAJOR corrosion that appears even on the outer part of the rims.

I've only had the car for 2 years, and I even store the tires for the winter!

Any idea what I can do? Are rims covered under warranty?

Here are some photos.

http://www.rx8club.com/attachment.php?attachmentid=74557&stc=1
http://www.rx8club.com/attachment.php?attachmentid=74558&stc=1
http://www.rx8club.com/attachment.php?attachmentid=74560&stc=1
http://www.rx8club.com/attachment.php?attachmentid=74561&stc=1
http://www.rx8club.com/attachment.php?attachmentid=74562&stc=1

Check with your dealer see if they are covered and can replaced under warranty or email/call Mazda USA to ask if you can get the rim replaced under warranty if dealer says no.

Some Mazda 3 owners were able to get their 17" replaced under warranty, depending on dealer.

Very interested in Mazda warranty info regarding rims and corrosion. Please post results..