For Rust-Proofing, is oil better than undercoating?
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Elder User
Joined: Sep 2001
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From: USA
For Rust-Proofing, is oil better than undercoating?
I'm going to be rustproofing this new (used) bed I'm putting on my truck and I was wondering if I should go to Wal-Mart and get some of that rubberized undercoating to spray it with, or will I have better results and get better coverage out of some kind of oil or grease mixture? I don't want this bed to rust out like my old one.
Thanks.
Thanks.
Posting Legend
Joined: Sep 2001
Posts: 30,255
Likes: 37
For Rust-Proofing, is oil better than undercoating?
The oil will wash off, and unless you properly clean and etch the metal the spray on undercoating will actually promote rust and flake off. Get the POR-15 products, follow the directions, and do the job right.
Postmaster
Joined: Jul 2001
Posts: 4,956
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From: MD
For Rust-Proofing, is oil better than undercoating?
When I do an oil change, I would soak the undercarriage with old oil every 3000 miles.
Way cheaper than Por 15 and you get an oil change to boot. Hehe.
Way cheaper than Por 15 and you get an oil change to boot. Hehe.
Posting Legend
Joined: Sep 2001
Posts: 30,255
Likes: 37
For Rust-Proofing, is oil better than undercoating?
On one of my old trucks I didn't have to change the oil, it changed itself and soaked the entire underside of the truck to boot!
But seriously, use the POR-15 products for your restoration. Check with Carlene, the [link:www.ford-trucks.com/cgi-bin/dcforum/dcboard.cgi?az=list&forum=bodywork&conf=misc|Bodyw ork] forum moderator here for any info on how well they work.
But seriously, use the POR-15 products for your restoration. Check with Carlene, the [link:www.ford-trucks.com/cgi-bin/dcforum/dcboard.cgi?az=list&forum=bodywork&conf=misc|Bodyw ork] forum moderator here for any info on how well they work.
Posting Guru
Joined: Aug 2002
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From: clementsport canada
For Rust-Proofing, is oil better than undercoating?
i've never used the por-15, but it sounds like great stuff... i'd coat the under side with it, then i'd mix oil, and foundation coating 50/50 and spray it on with a shot's undercoating gun, the oil will penatrate into the places that the por-15 doesn't reach, and help stop the rust from forming.. the foundation coating helps keep the oil from washing off...
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Freshman User
Joined: Mar 2002
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From: Ohio
For Rust-Proofing, is oil better than undercoating?
Oil or POR15, be sure to pop your tail lights and get the inside.
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