The salt (or something?) they use around here etches the alloy wheels. Some brands much more so than others (I'm looking at you Ford!). Maybe it depends on whatever clearcoating is applied on the wheels.
So I go with steel wheels in the winter. Plastic hubcaps from Autozone add some bling if need be.
So I go with steel wheels in the winter. Plastic hubcaps from Autozone add some bling if need be.