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  #13  
Old 10-14-2013, 06:24 PM
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Re: Underbody rust prevention?

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Originally Posted by loveracing1988 View Post
It depends on the vehicle. If a vehicle is prone to rust undercoating is a necessity, I had a 95 escort, when I got rid of it it was 15 years and 185000 miles old. There were a few small spots of rust but that was it, a identical car without undercoating would have had both rear quarter panels about ready to fall off. My dad has a F 250 (looks like a f150 though) he just got his first rust spot this last spring. His brother has a truck 1 year older and did not have it undercoated, his doors are rotting out and so are his fenders. Every vehicle is prone to rusting wherever water can just sit and eat away at the metal, will the wk2 be that way? No one will know for a few years. It also comes down to how good the undercoating is, if it all runs off in a year it won't do anything, but if you fond somewhere where they take all body panels and trim panels off to fill the doors and fenders and such with undercoating it is worth it.
You have no idea if that Escort would have rotted without it. None. You'd have to run the same car side by side to know. And do it on 10 cars. Then you'll have some stats.

If it made you feel good, great.

You are more likely to cause issues than prevent any.

Remove the body panels, you nuts !!!

Probably the most common thing that causes rust is clogged drains, from pine needles and such. You are more likely to clog a drain by spraying goo on the bottom. Keep them clear and wash your car at least once a year and you'll be fine.
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  #14  
Old 10-14-2013, 06:43 PM
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Re: Underbody rust prevention?

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Originally Posted by mswlogo View Post
You have no idea if that Escort would have rotted without it. None. You'd have to run the same car side by side to know. And do it on 10 cars. Then you'll have some stats.

If it made you feel good, great.

You are more likely to cause issues than prevent any.

Remove the body panels, you nuts !!!

Probably the most common thing that causes rust is clogged drains, from pine needles and such. You are more likely to clog a drain by spraying goo on the bottom. Keep them clear and wash your car at least once a year and you'll be fine.
I wouldn't go that far. A car in Arizona could last forever as far as rust goes, but someplace on the coast or up in Maine? Even though metal is highly treated on ships and aircraft, corrosion protection is a huge deal and a life-long maintenance process.
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  #15  
Old 10-14-2013, 06:43 PM
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Re: Underbody rust prevention?

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Originally Posted by Caper View Post
Ultimately my suggestion would be based on how long you plan to keep the vehicle. 6 years or less, I wouldn't bother. Anything more and I would be adding a backup if I lived in a rusty area.
I don't buy this at all. Just traded a 7-year-old Murano that was driven seven winters in Massachusetts with few winter washings and there wasn't a spec of rust. Undercoating makes as much sense as putting leather treatment on seat leather that has a coating on it. A waste of time and money.
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Old 10-14-2013, 08:15 PM
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Re: Underbody rust prevention?

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Originally Posted by hotspur View Post
I don't buy this at all. Just traded a 7-year-old Murano that was driven seven winters in Massachusetts with few winter washings and there wasn't a spec of rust. Undercoating makes as much sense as putting leather treatment on seat leather that has a coating on it. A waste of time and money.
I traded in a 10 year old Murano driven in Massachusetts and the rear sub-frame was rusted through, however the main car frame was still good. Then again, I was partially to blame because I didn't wash the car as much as I should have during the winter.

It seems to me that they have been using a LOT more salt over the last few years.

My plan with the Jeep is to give it a bath much more often during the winter.
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  #17  
Old 10-14-2013, 09:39 PM
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Re: Underbody rust prevention?

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Originally Posted by Zybane View Post
Are you having someone do it or doing it yourself? Which product/system? My Wrangler originally had Ziebart undercoating and it was a joke. They barely sprayed anything underneath the vehicle.
I've used a Crown product (Canadian) and a Diamond coat (again Canadian I think). Honestly I doubt one is any better than another but all require touch ups every year or 2. If you follow up with the touch up checks/treatments I think any will work.

Might try a Canadian Tire one on the new Jeep. Got a coupon.
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