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Underneath treatment for salty environment

8K views 19 replies 14 participants last post by  Drew 
#1 ·
ls there a recommended-safe treatment for the underside off Jeeps?

Where i live they salt the roads all winter, im trying to figure whats the lesser off to evils, the salt or a treatment?

Has anyone done any treatments-underseals etc etc, what where the results?

Cheers

anyoldiron
 
#2 ·
a few of the Aussie guys on here , put me on to Lanolin . I plan on mixing it with Flax oil and spraying on .
They say its good for about 6 months and its all natural.
 
#4 ·
I've never done anything with the sprays as mentioned, but they seem like the right type of thing to use. I'm only commenting to recommend not using an underbody coating, like you would buy from the dealer or bedliner place. That just gives more area for the salt to sit and corrode.

I've just tried to keep the vehicles clean, but that stuff does get everywhere.
 
#10 ·
I've never done anything with the sprays as mentioned, but they seem like the right type of thing to use. I'm only commenting to recommend not using an underbody coating, like you would buy from the dealer or bedliner place. That just gives more area for the salt to sit and corrode.

I've just tried to keep the vehicles clean, but that stuff does get everywhere.
Agreed. I've seen too many northern vehicles that were given the dealer undercoat, that turned into rust buckets a few years later.
 
#5 ·
Back in the day when I was a little tike I remember my grandpa used to spray the bottoms of the trucks and inside the fenders with used motor oil from a bug sprayer...haha.
I still use that general concept today where I will wipe an ugly spot with oil during an oil change.
 
#6 ·
Thanks for all the replies.

lt seems to be a Canadian thing!
lm going to get my 05 Hemi oiled. Not only do they salt the roads in the winter here, they calcify the rural roads in the summer aswel! l gotta do something! l will post up cost process etc.

Cheers
 
#8 ·
Ballistol would probably work very well, as a specialist lubricant wouldnt it be a little spendy? No dealers for it here,i couldnt find a price for it.

l just spoke to the detail shop that does the oil treatment, 1st available appointment is on 18th some ones heard!
 
#9 ·
Where are you guys finding lanolin at or these over-the-counter rust preventative sprays? I don't think I've ever seen that at any local auto parts stores....
 
#13 ·
i had the dealer undercoat mine with a "bedliner" type spray when i bought it.... has held up great for 2 years now.... i dont remember the product they used though
 
#14 ·
In the UK we use a treatment called Waxoyl sprayed on to the underside of the vehicle,into all the water traps, chassis sections and anywhere water/moisture could collect.
It takes a while to thoroughly coat everything but does seem to do the job!!!
 
#15 ·
Drive through a ssand pit. I highly recommend doing any openings in the underside/unibody rails and in the doors at the bottom seam. Spray on undercoating only trap prexisting moisture and cause more harm then good.
 
#16 ·
I'm surprised to see so many people treating the undersides of their Jeeps. I ran the ocean beaches of Ll for years in GM and Ford products. Their off road vehicles were built with double sided galvanized body panels, except for the roof. The most we ever did was drive through a puddle after a heavy rain.

Are Jeeps more prone to problems, or are Jeep owners just more protective of their vehicles?
 
#17 · (Edited)
It seems on the WK, most underside rust occurs on the normally black components like suspension, differentials etc.
Most people will say if you don't mind the look of these typically rusty looking parts, then no need to worry, just wash the undercarriage at the car wash periodically to eliminate any buildup.
I dislike the look of rust, even if it's not harmful, so I did Tremclad the black pieces but even that chips off after a while.
I'm trying a product called POR 15 now that is supposedly much more resistant to chipping and can be put over rust, expensive though.
 
#18 ·
That POR stuff is awesome...expensive, but worth it. Make sure you follow the instructions to a "T" and you'll be very happy with the results. :thumbsup:
 
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#19 ·
I live in nh where a lot of road salt is used. I've watched too many of my jeeps rot away from salt where other jeeps in non salt use areas look new. Its not just jeeps though its all cars, road salt eats away at all cars. In nh a car/truck that's only a few years old will have way more rust then you'd think.
 
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