I used my new F800GS as my primary transport through last winter and was concerned it would get ravaged by the salt etc.
At the Bike Show at the NEC I bought a 5 litre pack of FS365 and applied it to a clean bike, and as instructed on the directions gave a quick squirt over on a wet bike after every winter ride.
The bike wasn't cleaned from November to February and in Feb when I finally cleaned it off I was pleased to see as promised by FS365 it was like a new pin underneath! Woo Hoo very recommended