Salt can cause a lot of damage to chrome wheels---pitting, corrosion, etc. I would put a chrome wax on the wheel. You can buy the chrome wax a specialty wheel store. This is just like wax for your paint, but for your wheels. I use: "Wheel Wax" from www.wheelwax.com
if you look under FAQ's you will see this Q&A:Q - I live in the Snow Belt. Will WheelWax protect my wheels against road salt and harsh winter road chemicals?
A - Yes, WheelWax is designed to help combat these harsh conditions, keep in mind, whenever road salts contact your wheels you should clean them as soon as posible to keep your wheels looking great.
HOPE THIS HELPS!!! :happy feet: