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Winter oil

Discussion in 'Detailing' started by Wretched, Oct 8, 2009.

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Do you Oil coat the underside of your car for winter?

Yes of course I do! 0 vote(s) 0.0%
No I don't bother. 7 vote(s) 77.8%
What is rust? 1 vote(s) 11.1%
Isn't rust the color of my car? 1 vote(s) 11.1%
    • Member

    Wretched

    Post Count: 229
    Likes Received:0
    This isn't really a detailing question nor a service question... I don't think. But here it is anyways!

    I HATE rust! I need my car to last since the economic blah blah blah has pretty much killed my business. So my question is do you and if so what do you use to spray the underside of the car to prevent rust? I have been told cosmoline, wd40, trans fluid and trans fluid mixed with wd40. If you have done this what did you use and how messy is it? Did it work? I know there is a rust warranty but BMW's version of rust (perforation) and mine (smallest bubble) are very different!

    so help me out fellow members! I would like to know what you use and how it works out!

    Thanks
    Damien

    PS the bottom two answers in the poll are just fun. If you do vote could you explain your vote a bit? Thanks!
    • Member

    DHENRY

    Post Count: 25
    Likes Received:0
    Damien,
    Years ago, oil spray was a popular way to stave off the iron-worms.
    That was before zinc-coated steel panels and the much better external finishes of today.
    The only problem that motor oil or tranny fluid caused was the grit and salt and dirt that adhered to it.
    With the superb bushings and brake rotors and wiring on today's cars (generally), I wouldn't apply an oil underbody coating.
    Don
    • Member

    330indy1

    Post Count: 675
    Likes Received:2
    Griot's undercarriage spray
    link
    • Member

    John in VA

    Post Count: 624
    Likes Received:3
    Griot's Undercarriage Spray is just a detailing tool to hide dirt and discoloration on black parts and enhance chassis details, NOT protect anything.
    I saw an episode of Dream Car Garage (from Canada) where they sent a car to Krown to be spray coated underneath and in wheelwells for winter salt protection. Apparently it did a good job, then was cleaned/removed in the spring

    http://www.krown.com/#default
    • Member

    330indy1

    Post Count: 675
    Likes Received:2
    is it worse than oil ? at least it coats to a degree. and isn't so permanent. i posted the link so as to ID what it actually is, not to mislead. give me a break.
    • Member

    bluewagon

    Post Count: 150
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    Anti rust

    There is only one way to keep rust from forming. its to make cars from a product that does not rust. other than that you have to keep your car as dry as possible. Get an old clunker to drive in the bad weather..Move to a dry climate. Wash your car only when necessary.Go to http://www.wetpaintglaze.com/. No washing...
    Bluewagon
    • Member

    CRKrieger

    Post Count: 1,616
    Likes Received:20
    I'm seeing a runaway leader here ...

    If kept reasonably clean, no BMW under a dozen years old will have any serious rust problems. Heck, even among E28s (the last of which was built in 1987), there are very few structural rust problems. BMW got on the bandwagon around the same time as Audi did in the middle and late '80s and started making really really good bodies that take decades to rust at all and even longer for it to be anything other than a purely cosmetic problem.

    If you are planning for this car to be yours for over 25 years, you might want to look into extraordinary measures like this. Otherwise, I wouldn't bother.
    • Member

    CSBM5

    Post Count: 340
    Likes Received:3
    ...buy a beater car for winter duty.
    • Member

    Wretched

    Post Count: 229
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    Well the results are not what I expected! Thanks for the input!
    • Member

    327350

    Post Count: 75
    Likes Received:1
    Mike Miller did an article on prepping a BMW for winter

    I can't remember if it was in Bimmer magazine or Roundel but anyway he gave out a formula of things he mixed together to make up an underbody spray to protect against rust. I'm sure you could email him and get the formula he uses. Unlike south Texas, where I live, he lives in an area of the county that has real live winters with snow, ice and salt - the man knows his stuff....
    • Member

    nopcbs

    Post Count: 21
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    Reality check time, again

    I just had to have some brake lines replaced (from master cylinder to rear wheels) on my 1992 Lexus LS400 due to perforation of the lines from MI winter salt exposure. Cost me just under $500 at a local Midas shop. Cost was 1/2 labor and 1/2 parts. Lots of labor because the lines were behind panels that were tough to get off. Work was done at an extremely reputable and honest shop. In talking with the owner/manager of the shop, who I consider a friend after decades of dealings, I said that I wished that Lexus had used stainless brake lines so that they would have lasted longer than 18 years in MI winters. He noted that he bought his wife a BMW X5 some years back. She companined that the X5, at 5 years of age, had a spongy brake pedal. He thought it just needed bleeding. Reality was that a brake line had already rusted through and had to be replaced. That's at 5 years of age.

    Made me feel better (a little ) about the LS400.

    - GRL

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