Thread: winter tire psi
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Old 12-17-2011, 10:21 AM   #9 (permalink)
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Quote:
Originally Posted by CigaR007 View Post
I keep my winter tires inflated at 35 psi. I want them to maintain their flexibility at cold temperatures (lower than -10c). Over-inflation of winter rubber is not something I would personally endorse. I want all the grip available on icy/snowy surfaces.
Winter tires are formulated for cold weather, including being made with a different rubber compound.

I see a significant drop in traction - in dry conditions, as well as wet or snow conditions - when I hyperinflate winter tires. The effect is much more dramatic than what I've seen with summer tires. So, while I still run pressures considerably above manufacturer recommendations, I do tend to run lower inflation pressures in the winter than I do in the summer.
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