Even with regular rinsing and FF or other treatments? This is the question I keep coming back to is whether or not diligent cleaning and treatment will mitigate this kinda thing... I DD mine and so parking it for the winter isn't an option. I know it goes through at least a couple weeks total of road treatments, salt and brine and whatever else, each winter. But I also always try to rinse it and clean it with the hose at home whenever the opportunity presents itself and I always apply/reapply FF when I'm done.Fine, you go right ahead and do that. Driving mine in the winter for just 10 years rotted out the frame, torque boxes, fenders, rear boxed support, floor pans, B pillar cavities, and rocker seams. Doing a complete restoration now with a new frame and lots of tub repairs. I'm guessing the OP would like to keep his TJ cancer free.