last week i did my rocker panels and the weep holes in the bottom of the doors

when i had a little left over i hit some spots on the under carriage with it

looked under there today and it looks nice.....went on the site, and they suggest doing it one time a year to repel salt and snow

wondering if anybody did this to their jeep?

 

If you plug up the under side of the door drain holes. Unless you have very good condition window glass seals. It allows water down them, and collect. Which will rust out your doors from the inside out. Unplug those holes. In fact I have even drilled a couple of holes in the floor, just below the gas pedal. Because snow from my boots, melts off from the heater. And creates a puddle.

 

I use it prior to every winter. I had some surface rust on rockers before using it and the rust did not get any worse over the winter. It also doesn't get washed a lot during the winter.