Rust preventative - Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum

Join Wrangler Forum Today

Thread Tools

Please support our sponsors and let them know you heard about them on
Old 04-17-2013, 05:34 PM   #1
baker3's Avatar
Join Date: Sep 2012
Location: St. Robert, Mo
Posts: 531
Rust preventative

So today I was told to spray my under carriage with WD40 to deter moisture build up and prevent rust. Good or bad idea?

When your road ends, my adventure begins!
baker3 is offline   Quote
Old 04-17-2013, 05:53 PM   #2
Join Date: Feb 2012
Location: west burbs of Chicago
Posts: 22
Not a bad idea...but wont last long. If you want to take care of the problem you should look into por-15 and eastwood internal frame coating. There are plent of posts on it.

2001 Wrangler 60th anniv(daily driver)
1997 Toyota Supra tt 15th anniv(toy)
2012 Nissan Armada Platinum(wifes car)
2005 Ford F-150 Screw(just because)
BLK01 is offline   Quote
Old 04-17-2013, 08:30 PM   #3
Abe Froman

5-Year WF Supporting Member
doclouie's Avatar
Join Date: Feb 2010
Location: Was in the mountains, now in Texas
Posts: 3,748
Do not waste your time. You need something that will last like POR-15 or undercoating. You need something more permanent. Prep is the key!
2000 Sahara, 3.5" Rubicon Express Lift, 1" spring spacer & 1" Body Lift, 33" or 35" BFG Mud tires, Front & Rear ARB, Rancho 9000 shocks, UCF Ultra High Belly Up, Savvy gas tank skid.

doclouie is offline   Quote
Old 04-17-2013, 08:46 PM   #4
00falcon's Avatar
Join Date: Nov 2011
Location: West Auckland, New Zealand
Posts: 115
I got myself some Lanox
Untitled Document
I gave it a spray about 2 months ago... and it seams to be working well & adhering to the metal.
I have done probably 3 or 4 mud runs with a good waterblast after each...

im happy
00falcon is offline   Quote
Old 04-17-2013, 09:11 PM   #5
Stankgearoil's Avatar
Join Date: Feb 2013
Posts: 72
Originally Posted by baker3 View Post
So today I was told to spray my under carriage with WD40 to deter moisture build up and prevent rust. Good or bad idea?
Bad idea even for a temp fix. WD is a solvent. Will break up rust and repel moisture but when it dries out it can be even worse than before. PB Blaster lubricant is cheaper and will hang on longer without evaporation. New or used gear oil are also good temp fix until you have time to do it right (POR15 or equivalent). PB lube is cheaper too.
"But honey, you can ruin a Jeep if you never take it offroad......"
Stankgearoil is offline   Quote

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 05:21 AM.

User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC. is not in any way associated with the Chrysler Motors LLC