Skip to main content

I have a 2003 Infiniti FX45 with 145,000 kilometres on it. My tires (20-inch low profile) are always losing air, especially in cold weather. How can I correct this? – Arnie

When your aluminum wheel corrodes, it oxidizes, leaving behind a white powder residue. Continuing to degrade from the years of harsh elements, small pits/pockets develop. The mating surface where the rim and tire meet and seal is called the bead. Pitting on the rim's bead surface area brings about a path for air to slip through.

Most tire shops will grind the corrosion from the rim area and apply a vulcanizing rubber compound to promote a positive seal between the two. While this grinding is not the best for the longevity of the rim, it works well as a short- to medium-term solution, becoming less effective as the wheel ages and pit size increases.

Story continues below advertisement

Once the repairer can no longer offer an in-house sealing solution, the wheel can be sent out to a refinishing specialist that will access the overall condition and recommend a repair. This process typically costs about $125 a wheel. Your repair/tire shop will likely be able to offer a referral for a local wheel refinisher.

While not as common, cast aluminum can sometimes be porous, with the tiniest of pinholes allowing air to slip through the wheel body. A refinish may be possible, but replacement may be necessary.

Lou Trottier is owner-operator of All About Imports in Mississauga. Have a question about maintenance and repair? E-mail globedrive@globeandmail.com, placing "Lou's Garage" in the subject area.

We've redesigned the Drive section – take a look

Report an error Editorial code of conduct
Due to technical reasons, we have temporarily removed commenting from our articles. We hope to have this fixed soon. Thank you for your patience. If you are looking to give feedback on our new site, please send it along to feedback@globeandmail.com. If you want to write a letter to the editor, please forward to letters@globeandmail.com.

Welcome to The Globe and Mail’s comment community. This is a space where subscribers can engage with each other and Globe staff. Non-subscribers can read and sort comments but will not be able to engage with them in any way. Click here to subscribe.

If you would like to write a letter to the editor, please forward it to letters@globeandmail.com. Readers can also interact with The Globe on Facebook and Twitter .

Welcome to The Globe and Mail’s comment community. This is a space where subscribers can engage with each other and Globe staff. Non-subscribers can read and sort comments but will not be able to engage with them in any way. Click here to subscribe.

If you would like to write a letter to the editor, please forward it to letters@globeandmail.com. Readers can also interact with The Globe on Facebook and Twitter .

Discussion loading ...

Cannabis pro newsletter