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Undercarriage Treatment?! Yay or Nay?! Pros & Cons?!

Discussion in '2.5 Gen Tundras (2014-2021)' started by Spyker, Dec 5, 2021.

  1. Dec 5, 2021 at 5:50 AM
    #1
    Spyker

    Spyker [OP] I’m a dude,playin a dude,disguised as another dude

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    I’ve been looking at treating the powertrain/undercarriage on my truck with some sort of treatment to keep it looking clean, fresh and rust free, plan is to keep it for a long time.

    I used the search feature, but couldn't find the answers i was looking for;

    What are the pros & cons of doing an undercarriage treatment? My plan is to stay away from the tar applications, more so looking at the Corrosion Free Rust Cure 3000, and a simple spray gun to apply it.

    Other than the $65/gallon price, and my time, is there any reason to NOT do this treatment? I live in an area that has the occasional salted roads, with some snow from time to time, but nothing crazy.

    Any thoughts?! Thanks.
     
  2. Dec 5, 2021 at 6:10 AM
    #2
    Rotaryphoneuser

    Rotaryphoneuser New Member

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    Do it and you'll be happy. I do use krown every year and no rust.
     
    Hugemoose, geo58, LS3 and 1 other person like this.
  3. Dec 5, 2021 at 9:12 AM
    #3
    Spyker

    Spyker [OP] I’m a dude,playin a dude,disguised as another dude

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    Any particular reasons you use Krown over other brands (mainly Corrosion Free Rust Cure, because that’s the one I’ve seen mentioned most on the forum)?
     
  4. Dec 5, 2021 at 9:18 AM
    #4
    Bear

    Bear Fargin' Iceholes

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    Pulsar Edge V3; MBRP side dump exhaust
    Rustoleum Flat Black. One can in the spring, another in the fall. Underside looks fantastic. Any repair shops used (tire shops mostly) always comment how nice it is to work on a clean, rust free ride. FWIW, I’m up the Maine way. Salt is an issue. Maintenance is the key.
     
    Wallygator and WILLINH like this.
  5. Dec 5, 2021 at 9:29 AM
    #5
    Rotaryphoneuser

    Rotaryphoneuser New Member

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    I use krown because it works that's all.
     
    geo58 likes this.
  6. Dec 5, 2021 at 9:30 AM
    #6
    WFD473

    WFD473 Long Live The V8

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  7. Dec 5, 2021 at 9:34 AM
    #7
    WFD473

    WFD473 Long Live The V8

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    batman900 and BobsYourUncle like this.
  8. Dec 5, 2021 at 12:06 PM
    #8
    tiogajoe

    tiogajoe New Member

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    another vote for Krown
     
    geo58 likes this.
  9. Dec 5, 2021 at 12:28 PM
    #9
    jashotze

    jashotze New Member

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    Firestone Ride Rite Rear Bag kit, Leer Bed Camper Shell, Leather Seat upgrade, Truck bed lights, UHF/VHF Ham Radio
    Boeshield T9 is a fantastic product. It’s a commercial derivative of what we use at work on aircraft. I just sprayed most of the entire underneath with about 1/4 can.

    double bonus works fantastic on cast iron tools like table saws and bandsaws.
     
  10. Dec 5, 2021 at 1:07 PM
    #10
    batman900

    batman900 New Member

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    WFD473 likes this.
  11. Dec 5, 2021 at 1:19 PM
    #11
    OHwendTrd

    OHwendTrd New Member

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    Amsoil HD
     
  12. Dec 5, 2021 at 1:20 PM
    #12
    LarryDangerfield

    LarryDangerfield JUST DO IT!

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    Stock....for now.
    WFD473, batman900 and GODZILLA like this.
  13. Dec 5, 2021 at 1:26 PM
    #13
    OHwendTrd

    OHwendTrd New Member

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    Worth taking a look at. https://www.amsoil.com/p/heavy-duty-metal-protector-amhsc/

    • Contains special rust and corrosion inhibitor additives
    • Protects against the effects of salt, moisture and chemical corrosion
    • Leaves a long-lasting (up to several years), protective, wax-like, amber coating
    • Sprays into hard-to-reach places and works as an undercoat
    • Ideal for steel, iron, aluminum, brass, copper and other metal surfaces.


    Takes few hours to apply. I recommend in the street after a bath and let it dry overnight.
     
  14. Dec 5, 2021 at 1:36 PM
    #14
    BravoDeltaRomeo

    BravoDeltaRomeo Old Man Blue

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    First time Corrosion Free user here. I bought the 4L tub and cheap gun, $100cad shipped.

    I did the underside, didn't do inside doors or holes etc, that the more expensive wand guns do.

    It went on easy, no mess. Didn't take long. I avoided high heat areas, routers, brakes, muffler, exhaust. Any that got on there, burned off after a week or so.

    It has since snowed and I've gone mudding. There is still a layer on there when I test it with my finger.

    This was right after spraying.

    PXL_20211005_215806703.jpg
     
    Last edited: Dec 5, 2021
  15. Dec 5, 2021 at 1:45 PM
    #15
    OHwendTrd

    OHwendTrd New Member

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    I bought a rattle can, started spraying :thumbsup:



    Takes about 3-4 cans. Same as @BravoDeltaRomeo avoiding high-heat areas.
     
    BravoDeltaRomeo likes this.
  16. Dec 5, 2021 at 1:47 PM
    #16
    2mchfun

    2mchfun Lead foot, left lane, loud stereo

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    Seat covers, dash mat, ext. Trans. Cooler, sumo springs, oem pwr fld tow mirrors
    3 spray cans of fluid film shipped to your door will do great and cost about $40
     
  17. Dec 5, 2021 at 2:28 PM
    #17
    Corrosivetendency

    Corrosivetendency New Member

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    One gallon of fluid film at advance auto and $20 for a spray gun and 2 quart bottles from Amazon. Did the 4rlRunmer and Tundra with some left.
     
  18. Dec 5, 2021 at 3:01 PM
    #18
    SpyderRC

    SpyderRC New Member

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    I bought a gallon jug of fluid film and a spray gun on Amazon. I hook the spray gun to my compressor, did one application on my taco (when I owned it) and one application on the tundra and still have half a gallon left. So I’ll be good for another 2 years.
     
    Wallygator and BravoDeltaRomeo like this.
  19. Dec 5, 2021 at 3:04 PM
    #19
    RusPro21

    RusPro21 New Member

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    2021 Pro!! Nitto’s Tyger blades, Arc audio!
    B32574AA-EACF-4129-BB23-C7C674770131.jpg Had the 4runner done and now had the tundra done for the first year. Fluid film.
     
    Wallygator and 2mchfun like this.
  20. Dec 5, 2021 at 3:10 PM
    #20
    jomikepa

    jomikepa New Member

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    I've got an appt for Ziebart this week. I've done a bunch of research, some people love it, others hate it. Seems everyone here prefers the FF, is it really that much better?!? I've got a gallon of FF that I was gonna send back to Amazon...time is an issue for me.
     
    Cody1060 likes this.
  21. Dec 5, 2021 at 3:13 PM
    #21
    Spyker

    Spyker [OP] I’m a dude,playin a dude,disguised as another dude

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    Thanks for all the info. A lot of good answers. I’m leaning towards the Corrosion Free stuff with their premium applicator gun so I can get inside panels, doors, tailgates, etc.

    just need the weather to get a little warmer.
     
  22. Dec 5, 2021 at 4:15 PM
    #22
    Rotaryphoneuser

    Rotaryphoneuser New Member

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    Don't do ziebart....... please. Search YouTube.
     
  23. Dec 5, 2021 at 4:47 PM
    #23
    Charliebrn

    Charliebrn New Member

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    Another vote for Fluid Film. This will be my second winter with it… looks new under there and can you can power wash it off if you had to.
     
    FirstGenVol likes this.
  24. Dec 5, 2021 at 5:05 PM
    #24
    Rotaryphoneuser

    Rotaryphoneuser New Member

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    See, any oil spray base seems work.
     
  25. Dec 5, 2021 at 5:23 PM
    #25
    Spyker

    Spyker [OP] I’m a dude,playin a dude,disguised as another dude

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    That seems to be the consensus.
     
  26. Dec 5, 2021 at 5:24 PM
    #26
    Spyker

    Spyker [OP] I’m a dude,playin a dude,disguised as another dude

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    Curious, Do the Tundra frames have a chemical coating on it from the factory?
     
  27. Dec 5, 2021 at 5:48 PM
    #27
    tundra121

    tundra121 New Member

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    I started using crown over 35 years ago and it definitely works but drips all over the driveway specially the first few days after application and when the weather warms up out side.
    Crown does a number to the weather stripping around the doors some vehicles more than others.

    I switched over to corrosion free several years ago and it definitely works better than the crown doesn’t drip and stays on better. Any doesn’t affect the rubber weather stripping.

    Some others work as well and any is better than not doing it at all.

    There is a study done by the military and it rated quite a few of the popular products available and corrosion free has the top rating. Crown I think was 65% protection and corrosion free was 90 or 95%.
    ( I will try to find the report from a few years ago and post the link)
     
    TheDanimal and Spyker [OP] like this.
  28. Dec 5, 2021 at 6:28 PM
    #28
    FirstGenVol

    FirstGenVol New Member

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    I'm a big fan of Fluid Film but this guy claims that PB Blaster's new product works even better. I'd like to find it but it's hard to find in person.

    https://youtu.be/NE1_EiZIVHs
     
    WILLINH, alb1k and Spyker [OP] like this.
  29. Dec 6, 2021 at 3:55 AM
    #29
    YorkT

    YorkT New Member

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    Been using Fluid Film with no problems. I will probably try Woolwax when the FF runs out. Been reading good things about WW.
     
  30. Dec 6, 2021 at 4:09 AM
    #30
    MDUplander

    MDUplander New Member

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    I was able to pick up a case (6 cans) from Home Depot by checking on their app for a few days. According to the video you linked, he believes 6 cans would be plenty for an application to one truck/tundra.

    I think woolwax is a forum sponsor and offers a coupon when you purchase directly off their website. Was leaning towards them but ultimately decided against doing it myself due to not having the space or access to a lift. They do have a link to applicators on their web site so may pay to have my truck done sometime in the future.
     
    YorkT likes this.

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