Why would you want to rust proof this Cherokee? :surprise:
It is factory Rust proofed! Doing it will probably void your warranty. Especially if you intend to do it your self.
I have never had a Jeep rust proofed or undercoated in that last 20 years and never had an issue, even after 9 years.
You will block drain holes which will cause premature rusting, that I can assure you.
Do not do it or be sold on it. It is not needed.

 

Wow, good to know, my dealer try to sell me a rust treatment!!!

 

If you watch some of the videos on YouTube from the Jeep Toledo North Assembly Plant, you will see a process where the body is dipped into a bath of paint that seals the entire body in a rust protectant.

I personally don't see any benefits of providing any other "rustproofing" other than what is applied at the factory. These vehicles are not Chevy Vegas that were built in 1973 (I know, I had one), so additional protection is not required (IMHO).

As @Jeepster1 said, it may affect the drainage and most importantly; the warranty.

 

If you watch some of the videos on YouTube from the Jeep Toledo North Assembly Plant, you will see a process where the body is dipped into a bath of paint that seals the entire body in a rust protectant.

I personally don't see any benefits of providing any other "rustproofing" other than what is applied at the factory. These vehicles are not Chevy Vegas that were built in 1973 (I know, I had one), so additional protection is not required (IMHO).

As @Jeepster1 said, it may affect the drainage and most importantly; the warranty.

Does it do it on all body? Or you need to pay for an option to have it rust treated at the factory in the build process?
My dealer kind of suggest me to have it done I have to pay for it!

 

no reason to add more rustproofing. its already done. if you want to do something do undercoating.

 

I remember that he mentionned undercoating which will protect more, etc.
That worth it?

 

my opinion is that undercoating can do some good. that said ive never had it done but dont keep my cars fore than 5 years. if i was going to keep it a long time id look into it.

 

We plan to keep our Jeep for a long time so we are having the undercoating done through the dealer. I negotiated the price down below employee pricing. And here in Iowa they have been using this nasty brine solution on the roads during winter which is eating through things pretty quickly compared to the normal salting of roads.