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I posted this in another thread regarding exhaust and thought I'd throw it out there for you comments since it applies to all aspects of our rigs.
We have rotten winters and poor roads. Road salt is heavily used in my neck of the woods....usually about 75/25 mix salt to sand. Also pre-wetting on the highways with salt brine which makes the road salt sitck better to the road when the tandem flyers cruise down the road. Apparently the brine decreases the amount of "bounce and scatter" of rock salt thereby improving the rock salt application.
Enough of the road safety bit.
Other than rotten dirty undercoating what other proven systems are out there for corrosion protection? I've heard of some electronic systems and other cathodic protection...what experience do you guys have?
I was in a simillar situation, so what I did is park my beloved vehicle and bought a "beater" that had rust and dents in all 4 corners. Cost me $35.
Then when winter thawed, I drove my normal vehicle. When I left the tundra, I sold the beater for $225.
As far as undercoating or electronic protection goes, do everything you can. One of the best things a person can do is to wash off all the salt grime every day the vehicle is used, (which in my case was every night). Rust is going to happen, you can only prolong the enevitable.
I haven't done it on my F350 yet, but I reciently tried chain lube on my 98 ranger. I don't like undercoating, because I think that after a few years as it drys out and starts to crack and flake, that sometimes it just traps moisture and dirt behind it. The chain lube sticks really well, and its easy to spray above the fender wells and other nooks and crannies. Bad part is though, it attacts dust and it tends to creap out throught the body seams and gets onto visible paited surfaces.