I know rust is going to happen if i drive in the winter but what are some ways to slow IL's salt from eating my bird

 

rubberized under coating

 

Powerwashing the underside every couple of days.

 

or just done drive on wet or nasty days but if its your only ride keep it clean and in check with washing

 

will some ruberized undercoating in a can work? and underbody washes ill do for sure.

 

if you use it in a can, you need to get it up on a lift so you can move the can around and make sure you get it into every little spot.
I used it on my car when I did a repair, and i had to go back and fit a little spot that i missed because it was hard to move around.