Rust Module?

[DanS]

Considering a rust module vs. getting an undercoat. Has anyone had any good experiences with the rust modules or are they mostly gimmick? I am not crazy about spraying the truck, but if the modules are useless, I have no choice.

 

Interested in any experiences with the modules.

 

thanks

D

[Wingnut]

First off...What is it? Never heard of a rust "module".

 

Second...GM undercoats the trucks from the factory. No additional rust protection is needed, and in some cases can hinder the ability of the factory stuff to work.

[jblakeney]

First off...What is it? Never heard of a rust "module".

 

Second...GM undercoats the trucks from the factory. No additional rust protection is needed, and in some cases can hinder the ability of the factory stuff to work.

 

 

This is one I have seen. RustStop. But my all time fav... was the guy that wipes his entire car down with cheapest oil he can buy....... Every month or so he comes in and buys 3 quarts of the cheep stuff and sometimes a pack of white cloths........ It is a 1966 Dodge Polara... Looks ok, but the finish is kinda crummy from the oil he keeps on the car. He use to work in a shop in Chicago..... But that was in the 60's and 70's.................. I am in south Mississippi rust is not a big problem down here.....

 

Jbo

[pwall]

I have a 'rust inhibator' module on my '02 YukonXL.

After 195,000kms and 7 Canadian winters, not a spot on it.

Does it really work? No real proof, but I had good results.

[pm26]

First off...What is it? Never heard of a rust "module".

 

Second...GM undercoats the trucks from the factory. No additional rust protection is needed, and in some cases can hinder the ability of the factory stuff to work.

 

I think they only coat the frame, nothing else. The underbody sheet metal is not undercoated, even the rear wheel well sheet metal is only painted, which is unacceptable.

[Wingnut]

First off...What is it? Never heard of a rust "module".

 

Second...GM undercoats the trucks from the factory. No additional rust protection is needed, and in some cases can hinder the ability of the factory stuff to work.

 

I think they only coat the frame, nothing else. The underbody sheet metal is not undercoated, even the rear wheel well sheet metal is only painted, which is unacceptable.

 

 

I've never added any sort of rust inhibitor to any vehicle I've bought in the last 15-20 years and the only truck I had rust problems on was an '81 Toyota. My '89 Chevy hit 350,000 miles and my '92 was getting up to stupid-high mileage as well, both of them rust free after several Colorado winters.

 

I'm not saying it doesn't happen, on this forum alone there have been many, MANY threads related to rust problems.

 

Plus, I've never lived in the "Rust Belt"

 

So take my opinion with a grain of salt. But make sure you're protected before you take that grain!

[pm26]

I only undercoated the bare wheel wells on my truck to keep the sand and gravel thrown by the tires from pitting the paint and causing the rust. Also, I have sprayed CRC corrosion inhibitor into all folded creases inside the door bottom, and hood edges. That's about it.

 

It is true that improperly applied undercoating, when it is too thick for example, can crack and actually trap moisture, thus accelerating corrosion. However, properly sprayed on undercoating cannot hurt in my opinion.

[Rustybull]

I'd just wait until they put a fresh coat of Tar down on the roads. Then hit the tar going 65-70.

 

Seriously, though, a grease undercoating does work wonders from what I've seen in the junkyards.

[smiledr996s]

I had good luck w/ http://www.interstateproducts.com/rustkiller.htm

 

Steve