I see no change from my summer tires to my snow tires, but it may be that my summer tires are just really bad.
Summer: Primewell PS830 165/80-R13 at 44psi (cheap)
Winter: Hankook Zovac Studless 185/70-R13 at 44psi (also cheap, would buy skinnier next time)
They both come out reading 3% high on the 10 mile odometer check on the freeway.
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