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Tire Blooming Brown Tires

About Brown Tires & Tire Blooming

Have you noticed your tires turning a brown color?  They could be “blooming”.

Just like tire cracking and dry-rot, tire-blooming is common on vehicles that don’t get driven much.

That’s usually because the tire manufacturer used an additive, antiozonant, in the tire’s rubber  — Antiozonant protects the tire against dry-rot, ozone, and weather-cracking, but on tires that don’t get driven the antiozonant turns a brown color, staining the tire’s rubber permanently.

Most drivers wear out the tire before tire blooming becomes an issue. 

I’ve noticed that the severity of tire browning and blooming varies between tire brands and mostly on old tires that don’t get used much, such as these high-performance Michelin Pilot PS2 tires on a Corvette —

Tire Blooming Brown Tires

There’s not much you can do to remove the brown residue left by the antiozonant, so if you want to keep your tires black, you’ll need to wash and protect them after every trip.

I’m currently using Dark Fury to clean wheels and tires at the shop — Mixed 3-1, I use a spray bottle to apply and then agitate with a soft brush before hosing off. 

If you’re a fan of shiny tires, use a water-based dressing like Wizards Tire & Vinyl Shine to finish the job because it won’t harm the tire and contains UV protection — Stay away from solvent-based dressings because they will accelerate tire cracking.

Tire blooming is not usually covered by a manufacturer’s defect warranty because it’s considered a cosmetic condition that doesn’t affect the performance or safety of the tire.

Although blooming tires are not a safety concern, it could be a sign that your tires are old and should be replaced — But if your tires are less than 5 years old, I recommend filing a customer satisfaction warranty claim with the tire manufacturer directly.

Thanks for visiting, Spencer.

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