I use the Wintrac 4 Extreme's all year round. The wear rate is 1mm per 12,000 miles.
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 1984 245 SE 1986 345 SE Auto
1991 940 TD Auto 2003 XC90 D5 SE AWD Geartronic2002 V70 D5 SE Auto 2014 V40 D2 SE Tiptronic Cross Country 2017 V40 D2 Cross Country Geartronic Pro 2015 XC60 D5 Polestar SE Lux Nav AWD Geartronic
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