He's kinda right about the rubberized undercoatings but oil based coatings like fluid film or woolwax actually do work regardless of the condition or prep
Scotty has never been so wrong. I live in Canada and undercoating makes all the difference in the world. It will literally make a car last 10 to 15 years longer
Fluid film is what will save your car. And it doesn’t matter how good they did in the factory, any painted frames or unibody’s will be chipped up in less than a year and start to rust. Fluid film can be applied directly over rust and won’t seal in moisture like paint or other undercoatings, and it will self heal from rock chips etc because it stays in a liquid like state. You’re welcome.
@@thriftygroundscores3628 They kind of did. It had to be a problem within 15 years. I have a 22 yo used tacoma that the shock just fell off the frame. They say the tacoma frame will crumble before the engine and transmission goes bad.
@@thriftygroundscores3628They replaced A LOT of frames free of charge. They did my dad's '06 Tundra after about 10 years. It started rusting again soon thereafter. We live in the Snow Belt between Cleveland and Akron where road salt/brine consume frames at a rate rivaling that of Americans consuming sugar! (Ok, maybe not THAT fast. But I'm not sure anything could be compared to that rate...)
Shocker, Scotty Kilmer is wrong about something. Try living in the midwest. I don't care if your car is made of stainless steel or aluminum, up here *any* metal will find a way to rust
I've had good luck with oil spray undercoatings like Krown or Fluid Film. I believe it does slow the rust down even if it doesn't prevent it entirely. It helps with all the salt they put on the road during our New York winters
@Junefire95 : You are absolutely, Right. I have been using Krown for over ten years, and so far not a speck of rust, on my 2013 manufactured, vehicle. Scotty is right as far as areas in which no salt/brine is used on roads during winter: but anywhere it is used, reputable complete(not just underside)rust protection is vital. Roland Singh, Canada 🇨🇦
I had to junk my used 97 Camry because it ruated out. 265,000 miles & was still going strong. Got a new Prius & mine done w/fluid film & I plan for yearly sprays.
@walker.wayne57 wrong. Moisture and salt accelerates it. No car in the north east where salt is used is safe from rusting. You can slow it with fluid film and like products, but you can never defeat it. 10-12 year mark, look under, there will be rust. At best, it’s just surface and not total rot. New Cars have surface rust underneath at dealership.
Correct Scotty but if you want your vehicle to last in the salt belt you use OIL BASED COATING like fluid film. I coat my tundra yearly and the oil coating stops rust .
@@codywankaputo9629 Ziebart is good but get their zinc based rust protection. Any rubber based coating is a bad idea. Rubber rots and with repeated application it thickens, possibly causing issues. My former 1981 Ford Fairmont had no rust after 10 years of Ziebart protection and I'm in Michigan.
@@Jaxen90841 I think we all love and respect Scotty, but you are correct. He is wrong about certain things every so often. Do not take his advice on undercoating. He is stating a partial truth. It all depends on where one lives. Yes, undercoating can rust your vehicle faster in certain geographical locations. If you live in the salt/rust belt you must get it undercoated if you want to keep your vehicle for as long as possible. It will also help hold its resale value. Keep the receipts of all the treatments during the years. Dealerships will also offer more during trade-ins if you kept it undercoated. Toyota dealerships located in the rust belt have their new cars automatically undercoated, before they're even sold btw!
I've heard of 2015 trucks in PA with rotted frames. Sorry scotty maybe where you live it's a waste but anywhere that uses salt or brine you should definitely use it
I actually plan on undercoating my next Toyota. I live in the rust belt and have lost so many to rust. It's a shame to have to let go of a car with a perfectly good engine and transmission because the body is completely shot.
Fluid film will work. Look at reviews on youtube 5+ year reviews and frame still looks new. Im on year 2 in newyork and my frame still perfect on a 90’s toyota daily driver
Although I think Toyota has one of the best factory coatings against rust(expect the older Tacoma's), any car that will spend some time in the rust belt needs additional undercoating. Either wax or oil based and avoid rubberized.
In Scotty’s defense, he once answered my question about a Tacoma I lost to rust up here in VT, with only 150k on it. He’s quite aware of the north eastern rust pandemic! Rust prevention and management should be absolute common sense to those living in problematic regions; that should go without saying. But to those who do not live in such regions, do not think for a second a stealership or a service center won’t try to up sell the threat of rust. That certainly applies to the greater majority of Scotty’s audience, especially within a one minute clip!
I mixed pb blaster dish soap and transmission fluid all together and then sprayed it onto my undercarriage. No additional rust has formed since. It’s effective and cheap!
I disagree. There are products like fluid film which isn't a sealer. It actually stops rust if there is any or prevents rust. In fact living in the rust belt. Fluid film will allow you to run your engine into the ground before to body rots around it. So yeah... maybe scotty needs to do his research.
@walker.wayne57 I’ve seen a video of just washing Vs undercoating and undercoating still edges. Even with a hose wash, salt is still dissolved and then the pressure further drives the solution deeper into the crevices
@@vqdriveryeah i agree! sometimes can make it worse as will get in the bits you cant then you got water/salt mixture that will accelerate it even further
@@vfrtom9669 I wish I paid attention to undercoating and the different products available like 10 years ago!! I tell my friends and colleagues it’s never too late to undercoat until it’s “too late.”
@M R I have used a product called Star Brite Salt Off. I’m sure attaching that to your hose is better than just water. Or using a foam cannon soap hose attachment would work too. OR you could go nuts and put it on 4 jackstands, remove the wheels and do a full underbody detail using all purpose cleaner and detail brushes Lol. I truly I suggest any of the lanolin based products applied yearly ftw. It’s like doing timely oil changes. Maintenance is key
Not sure where you are, but here in Maine it all rusts...even having a car from here lowers its value. Undercoating is essential for vehicles that see road treatment and salt.
@walker.wayne5772 the salt will sit on the car as soon as you wash the car. If the salt is on the car then it's on the car. Doesn't matter if it's new salt or old salt
@walker.wayne5772 you have no idea what you’re talking about bud, as soon as you drive the car again it’s gonna get salt all over it again. It’s proven that undercoating is more effective than washing. And you really expect people to hose the underside of their car down in -20 weather?
Fluid film everywhere. Drove my Tacoma home from the dealer, pulled it apart, and laid it on thick. Filled the frame, rockers, everything. Not a sign of any rust anywhere.
Scotty, give your head a shake man!! I have a 2010 Silverado I had since new and still looks new because of Rust Check since new! Almost every other Silverado from that generation I see on the road has no fenders left from rust
@@phatgringo2.0 doesn’t matter. If you live in the rust belt even new cars today will start rusting pretty quickly if not rustproofed starting early in it’s life.
@@phatgringo2.0 newer cars are better protected, but they too will rust with time. Scotty may be referring to people who buy new every 4-5 years. If you want your vehicle to last longer, get it undercoated.
I work at a toyota dealership as a detailer plus spray undercoat TBH undercoat is crap it seals in moisture so rust from inside out, multiple times a week i am touching it up from peeling plus under the product there is surface rust Toyota truck frames undercoat does not stick because there is a wax applied Stay away from undercoat it is nasty stuff i recommend oil spray
that is why Scotty is a millionaire and we arnt he cuts corners to save cash. but not always good thou.i get my car done every year if not every 2nd fall
@walker.wayne57 I like Tacomas, I really do. The thing is, you could take a Tacoma and any other truck that’s been treated the same way and then Tacoma is much much more likely to have the frame fail. It didn’t happen to all of them but definitely a lot. I have first hand experience. They didn’t have frame recalls for no reason lol.
I have had cars with and without extra undercoating and the difference is mindblowing for climate areas with winter. Cars with extra undercoating look a lot better underneath and are much easier to maintain. It is the perfect time to put extra undercoating on when the car is new as it has had no damage from spray or moisture or salt yet. The rust protection from many brands is very poor indeed, especially for the lower price segment. But, with proper undercoating applied early in its life these cars can age more gracefully. I mean they will still break because of the cheap parts but at least you dont have to look at an underside that has more rust than an old tractor after only a few years.
Scotty, we live in the snow belt. I had my brand new '08 FJ Cruzr Ziebarted that same year. No rust no problems. And I'm glad because of the FJ frame fiasco created by Toyota. Go back once a year for a touch up respray. Shame on Toyota for knowingly doing this. I also have a '76 FJ 40. Never undercoated. Perfect frame.
Ya right. Up here if you dont undercoat your car it will look like hell inside of 10 years. It also makes working on it as it ages worse and worse. Nothing sucks mire than rusted broken bolts or ones that round off. Makes a job way harder than it has to be. I undercoat my car myself it took 4 cans the first time I did it and now i use about 2.5 every year. Redo inside the doors, seams and underbody. Especially the brake and fuel lines. Costs me about $30 a year. Car is 16 years old, looks as good as it did the day I bought it new.
But am I going to remember to wash off my car once a week? Probably not. I’m busy. But can I do rustproofing on my car once a year? Sure. It takes a lot less time than remembering to clean it off once a week.
Lol, when I worked at a Toyota dealer, the underside of most of the new Toyotas on the lot or shipped in were already slowly rusting in tiny spots underneath. Happens with every car manufacturer to a certain degree.
I remember being a salesman selling cars in the 1970's in Az, The cars came with an undercoating from the manufacture and yet the boss put undercoating on the addendum sticker that was already on the car. It was what we called packing the car so the dealer had money to give back if needing more to make a deal. Awful business. But one could lose a sale for as little as $25 to another dealer if one couldn't give enough for ones trade in.
I bought a used travel trailer and the previous owner had paid for aftermarket undercoating, I’ve heard some bad things, they probably just sealed in any rust that it had on the frame and now it will grow.
Use Owatrol or some other penetrating oil, stick with it yearly, you can sand the "ugly" rust off if it bothers you. But oil it again after. never had any growing spots
Use something oil based like fluid film. I don't care how well the factory preps and paints it. If you live in an area where salt is used over winter it will eventually rust.
When I moved from Phoenix to Chicago, I wasn't really aware of the rust problem. My Chevy truck was seriously rusted in a couple of years. I bought another used Chevy back in the desert and drove it to Chicago and got it rust proofed right away, it was either Ziebart or Rusty Jones (that will tell you how long ago this was), I don't remember which. That vehicle was practically spotless when I sold it a few years later.
You mean rubberize undercounting right !? You are not talking about oil base counting ( lanolin ) because oil base counting is best thing to protect your vehicle chassis against the nasty salt and other type of debris from the road.
@@killdizzle I agree, I keep a couple cans of fluid film on hand for that purpose. Fluid film works pretty good, but it does wash off, so you definitely have to spray it on every year. I used to live in the rust belt of Pa.
@@aden3113in case you are serious, I took down the 7 panels under my 2018 Camry and found.....rust. and those panels held about 10lbs of rock, dirt, and road salt chunks. They don't cover the entire thing that's for sure.
@@aden3113 Rust causing moisture can easily find its way under the plastic. It's actually better if they just left the underbody open. Much easier to access when spraying oil base undercoating.
Dealer's offered undercoating is a waste of money but the once-a-year type of treatment is essential if you do a lot of road where they put de-icing salt. Regular washes during winter also helps.
Scotty doesn’t know what salt or brine can do to a vehicle. That coating doesn’t matter from the factory. Within weeks there’s chips and a place for rust to start. In NNY the salt and brine that gets sprayed accelerates the rusting process at an insane rate…
U can kill the rust with ospho, it neutralizes the rust, and takes out the charge, stops the electrolysis, puts out the fire. Then u can coat with undercoat, used oil, or pitch to lock out the salt and moisture
True if you live in California or Washington Puget sound region, most of the cars are virtually rust free for 20 years. Undercoating sometimes accelerates the corrosion, all you need is moisture and salt getting into the cracks. Also poorly done undercoating of masking brake lines, fuel lines, electricals, etc makes repair within the undercarriage more difficult.
That's why undercoating is also what's called a rust convertor as well, it can help make the rust into somewhat strengthened metal and no oxygen means no rust
Next episode: don't waste your money washing or waxing your car. Auto manufacturers protect the paint with a clear coat that will never ever fail. Just don't try to prove me wrong.
You are wrong. The clear coat is very delicate and can be very easily damaged. That’s why washing, decontamination with iron remover and clay bars, a compound and polish to correct all the scratching and marring, then finishing the clear coat with a high quality ceramic coating is key. Protects the clear coat, and gives awesome self cleaning properties and very hydrophobic properties
This is great advice, I live near the beach and I knew a guy that had a forerunner that went 300,000 miles, but he said the bottom rusted out, there’s a local guy here that said he seals/coats the bottom of the truck, but now I know that the rust just stays in there and keeps on decaying, thank you for the information
I have a 2006 Honda Ridgeline, live in northern MN. It was rustproofed and did go threw the vat of zinc. What was undercoated wasn't really the frame it was other areas. Worst thing is driving your car and storing it in a garage in the winter. Freeze, thaw, freeze, thaw, freeze, thaw, that's what accelerates rust. And there's know getting around it, just try to slow it down.
Sorry, Scott. Might be wrong about this one, ESPECIALLY Toyota. I presently have 3 toyota models, built like tanks, run forever, trouble free, but the frame on our expensive Toyota Sequioa is RUSTED!! Also, the Sequioa models before the one we own had a recall for rusted frames. Our friend owned a Sequioa that ran perfectly, but Toyota replaced his frame, and the same for a few other models. My Avalon rusts too, prematurely. Great cars, but they do rust, and undercoating does help.
Not a mechanic, but a chemistry student. If you can completely stop the oxygen from getting to your metals, you can stop rusting. Idk if undercoating works, but please don’t give up on fighting rust. It’s doable, and so totally worth doing.
@walker.wayne57 Salt increases the rate of rusting, but you can totally get rust just from moisture. If you want to stop rusting completely, you need to remove the oxygen. A thorough wash/dry followed by a simple paint job should do.
@walker.wayne57 not true. I washed my truck and it Still rusted. Good luck getting into hard to reach/impossible places to get the salt or cause it will find a way inside "sealed" places
Hi Scotty, Do you need to apply undercoating for new Ford Maverick? Does Ford paint the chassis they way Toyota does it? What is difference between Oil base undercoating and Rubberbase undercoating? Thnak you.
Scotty... Really? 😂 A *lanolin-based* undercoating both inside and outside the frame is priceless here in the Snow Belt. Look up REPAIR GEEK's 6-year series on this exact topic. Also, get a set of snow tires. It's totally worth it.
I took the car for rust protection a few days ago. The car is 4 years old. I took him for the first time when he was 1 year old. The protection was done with Krown oil, the chassis and hollow parts of the body. They recommend renewing every 2 years, but I renew the undercarriage protection every year because it is only more exposed. This is what I order the repairmen to spray a little with Krown spray when they service me. I live in Slovenia in Europe
Here in Latvia they put salt on roads very often, so people buy undercoating for used cars, but of course you either sandblast them or clean the rust off with an angle grinder. Just painting them with undercoating really solves nothing unless you have a brand new car and put on the type of undercoating which prevents all sorts of items puncturing the body, but that is more for trucks and jeeps and quite expensive.
This advert bought to you by Toyota who would love to sell you a new car after your existing one rusted away after 5 years living anywhere but the american south..
I live in the salt belt and let me tell you, without undercoating yearly a brand new vehicle will start to noticeably rust on the body in 2 winters, the frame will start to rust in the first couple weeks and within 4-5 winters you’ll get scale. Idk if you’ve seen such a thing but it’s rot to the point rust chunks will fall off the vehicle. In your area it might be a scam, but here Scotty it’s an absolute necessity if you want a nice vehicle for a long period of time
if you didnt sckratch the rust away and treat it no matter what you did you wont get that far Aat least soundproofing is better and rust wise it cant get any worse .Take a spray fill it with distilled water and a veggie oil in an 20/80 ratio and spray it over epsecially in the edges if you want to keep it sealed or with a mineral oil/petrol solution to slowly get it off .All the best
2 things. 1. Yes there is a coating, but it doesn’t work if it is scratched through. 2. Rust doesn’t make more rust. It simply makes a place for more rust to form as it is created and exposed more iron under it. Rust is created from an oxygen molecule binding to an iron molecule (iron oxide). It happens when humidity (water) is on bare iron. It doesn’t spread like moldy bread.
Scotty you didn’t do your research in this. In just the Midwest of WI we install undercoat systems because the brine will begin to rust your vehicle within one season. It gets inside the doors drain openings and will rust them inside out. Same with the vehicle frames. It’s not just the exterior coat that matters you have to keep the brine from reaching inside.
I had the shop spray wool wax everywhere and inside the frame of my truck. Once a year I reapply myself. I plan to have them take everything off and spray once every 5 years or so. I live in the rust belt and so far so good. I will say I do have a 21 year old Toyota rav 4 that’s garage kept but does drive in the salt. It was never sprayed with anything and hardly has any rust at all.
If it's absolutely new, definitely have it undercoated. MORE is BETTER. But if it's already rusting, Scotty's correct. As for POR15, and other similar paints that soak into and combine with rust,(after performing the required surface preparation of loose rust removal and cleaning with the special cleaner), they work for a couple of years, but if the vehicle is out on the salty winter roads, the rust WILL continue UNDER the special paint (even with oil-based undercoating layered over it), and both will PEEL & FLAKE OFF.
That's why they sand blast the surface rust off, and then coat it. It will definitely slow down rusting when you live up north where they use salt for winter roads.
I agree that undercoatings that “seal” and get hard such as POR-15 are absolutely useless especially if you already have rust as it will in fact trap moisture and rust and in the long run make it worse for your vehicle. On the other hand, there are plenty of oil based undercoating products such as NHOU. You can spray NHOU and 2 years later it will still be wet and oily like the day it was put on. Unbelievable product.
Scotty: “don’t pay extra for undercoating”. Me: “That’s nice… anyways”. *proceeds to spray a second coat of FluidFilm under my rig that hasn’t rusted a square inch after 20 winters*
It's actually overcoating since it goes on top of existing coats, A coat of wax applied by hand is probably all that is helpful to seal out moisture where there are no scratches and give a deep lustre.
@@MrJruta ok thanks my bad.however it's still going over existing factory applied coats hence it will only be as chip resistant or rust resistant as the factory coats are.
Lol Scotty obviously doesn't live where they salt the roads in the winter. Use oil based undercoating in those climates. The vehicle will last much longer.
Unfortunately Scotty doesn’t live up north with salt ,snow and -40. If you want a vehicle’s body to last 20 years up here in Canada use a yearly coating
A lot of components don't go through that bath, and some Toyotas from the mid 90s actually had serious rust issues which is what prompted Toyota to improve and lengthen their rust warranty.
Depends on where you live if you live on an island in Scandinavia. I would recommend getting a coding on a new car. Everything rusts here because of the humidity and salty air
Rubberized under coating is horrible and will trap in the moisture but products like fluid film are good for protecting from rust. Motor oil works well too
Mechanics advice lol. Paint on any surface helps stop moisture from penetrating through the metal. They are oil based so they repel water which means contact time of h2o on metal is minimized.
I have a 91 Toyota Previa from Colorado. It's rusty underneath. I thought about treating the rust, and maybe a wax undercoat. Wax inhibits rust, BUT It's flammable.
All yours videos are great appreciated but I’m a little confused on this one. For example I’ve seen some 4Runners with bad rusty frames because the lack of maintenance 🤷♂️
Scotty what if you live in the rust belt or have harsh Winters and road crews spray liquid salt solution all over and you got to drive through it your vehicle's going to rust man. So mayve undercoat is beneficial
Doesn't matter the brand, you drive in the snow regularly you'll rust out if you don't undercoat it. Fully boxed frames are worse as the salt will get in there and it's hard to clean. HOWEVER Scotty is partially right, don't buy undercoating that is paint, you want a wool wax undercoating because once the rubberized undercoating gets a tear from a rock or something moisture gets trapped and rust holes start to form. A wool wax based coating like fluid film keeps the vehicle rust free when used regularly (doesn't last forever, I use it once a year before winter) and if you wash your undercarriage after winter salt.
Thanks for watching! Like and Subscribe for More Vids Daily ► ruclips.net/channel/UCuxpxCCevIlF-k-K5YU8XPA
Can you do a video on sunroofs? probems that happen, like leaking
I have a first gen tundra and I did the recall and am I good ?
How to say "I live in the south" without saying you live in the south.
He's kinda right about the rubberized undercoatings but oil based coatings like fluid film or woolwax actually do work regardless of the condition or prep
What I thought. His Toyota lived in Texas for most of its life.
@@wcovey25my 02 ford ranger has no rust..bought it new and fluid film it 2 times every winter in Chicago
@@TragickSinreally? Literally no rust at all?
@@whatitisnt. He did say 2 times every winter lol
Scotty has never been so wrong.
I live in Canada and undercoating makes all the difference in the world. It will literally make a car last 10 to 15 years longer
I dunno, is undercoating the same thing as rustproofing?
Well he is a mechanic , and they never lie right ? Lol
@@justwatchingffs371 yes, they’re often used interchangeably. The best one is oil undercoating (I personally use Krown)
Good day from Ontario. Yes I agreed 100%
undercoating really helps
Scotty I think isn partially wrong
Ths
Can you do this yourself?
Fluid film is what will save your car. And it doesn’t matter how good they did in the factory, any painted frames or unibody’s will be chipped up in less than a year and start to rust. Fluid film can be applied directly over rust and won’t seal in moisture like paint or other undercoatings, and it will self heal from rock chips etc because it stays in a liquid like state. You’re welcome.
Toyota just called Scotty, they would like to have a conversation about all of those Tacoma frames they replaced...
do you know if toyota addressed the issue?
So they can hear his loud mouth?
@@thriftygroundscores3628 They kind of did. It had to be a problem within 15 years. I have a 22 yo used tacoma that the shock just fell off the frame.
They say the tacoma frame will crumble before the engine and transmission goes bad.
@@thriftygroundscores3628They replaced A LOT of frames free of charge. They did my dad's '06 Tundra after about 10 years. It started rusting again soon thereafter. We live in the Snow Belt between Cleveland and Akron where road salt/brine consume frames at a rate rivaling that of Americans consuming sugar! (Ok, maybe not THAT fast. But I'm not sure anything could be compared to that rate...)
@@thriftygroundscores3628yes they sorted them 9
Shocker, Scotty Kilmer is wrong about something. Try living in the midwest. I don't care if your car is made of stainless steel or aluminum, up here *any* metal will find a way to rust
Even stainless will rust when subjected to salt and harsh chemicals
@@TheDutchGuy110 I know, that's my point
I've had good luck with oil spray undercoatings like Krown or Fluid Film. I believe it does slow the rust down even if it doesn't prevent it entirely. It helps with all the salt they put on the road during our New York winters
Fluid film works for me, spraying inside the doors and the frame. It does wash off, so vehicle should be touched up every year!
@Junefire95 : You are absolutely, Right. I have been using Krown for over ten years, and so far not a speck of rust, on my 2013 manufactured, vehicle. Scotty is right as far as areas in which no salt/brine is used on roads during winter: but
anywhere it is used, reputable complete(not just underside)rust protection is vital. Roland Singh, Canada 🇨🇦
If you spray fluid film liberally, it completely stops any rust from happening.
@@Rekt-M8-v4 Your right about that, everytime I see a little rust on my vehicles, I break out a can of fluid film!
I had to junk my used 97 Camry because it ruated out. 265,000 miles & was still going strong. Got a new Prius & mine done w/fluid film & I plan for yearly sprays.
If you travel in an area where they use salt or salt brine, your car is starting to rust within ten years.
I thought it made them quitter and you don’t here as much road noise.
@walker.wayne57 wrong. Moisture and salt accelerates it. No car in the north east where salt is used is safe from rusting. You can slow it with fluid film and like products, but you can never defeat it. 10-12 year mark, look under, there will be rust. At best, it’s just surface and not total rot. New Cars have surface rust underneath at dealership.
@walker.wayne57 bull
@@bjornironsides6474 yep, brand new trucks show frame rust on the lot. Cheap transit coating that feels like wax.
@walker.wayne57
Whoa!
Correct Scotty but if you want your vehicle to last in the salt belt you use OIL BASED COATING like fluid film. I coat my tundra yearly and the oil coating stops rust .
Yup, you're right. Scotty's wrong. My '07 Corolla gets fluid film every year for its upstate NY winters. It just turned 300,000 miles.
What brand?? Im buying a tundra or tacoma and i live in upstate binghamton, they go crazy with salt.
Doesn't he live in TX? I used ziebart rubberized under coating and I cudnt be more disappointed. I should have gone with oil spray
@@codywankaputo9629 Ziebart is good but get their zinc based rust protection. Any rubber based coating is a bad idea. Rubber rots and with repeated application it thickens, possibly causing issues. My former 1981 Ford Fairmont had no rust after 10 years of Ziebart protection and I'm in Michigan.
@@Jaxen90841 I think we all love and respect Scotty, but you are correct. He is wrong about certain things every so often. Do not take his advice on undercoating. He is stating a partial truth. It all depends on where one lives. Yes, undercoating can rust your vehicle faster in certain geographical locations. If you live in the salt/rust belt you must get it undercoated if you want to keep your vehicle for as long as possible. It will also help hold its resale value. Keep the receipts of all the treatments during the years. Dealerships will also offer more during trade-ins if you kept it undercoated. Toyota dealerships located in the rust belt have their new cars automatically undercoated, before they're even sold btw!
I've heard of 2015 trucks in PA with rotted frames. Sorry scotty maybe where you live it's a waste but anywhere that uses salt or brine you should definitely use it
@@killdizzle and the coated brake lines
I actually plan on undercoating my next Toyota. I live in the rust belt and have lost so many to rust. It's a shame to have to let go of a car with a perfectly good engine and transmission because the body is completely shot.
Fluid film will work. Look at reviews on youtube 5+ year reviews and frame still looks new. Im on year 2 in newyork and my frame still perfect on a 90’s toyota daily driver
If you do it yourself, you need to get the information on where to drill the holes in the body channels to saturate the insides as well.
@@oliver_klozoff Thank you for the tip. I’m sure I’ll have someone else do it for me.
@@sandyseibelhager7131 if you live in the north east consider having it done by krown.
@walker.wayne57 if you live in a climate where it's well below freezing constantly for months at a time, that's not always possible.
Although I think Toyota has one of the best factory coatings against rust(expect the older Tacoma's), any car that will spend some time in the rust belt needs additional undercoating. Either wax or oil based and avoid rubberized.
In Scotty’s defense, he once answered my question about a Tacoma I lost to rust up here in VT, with only 150k on it. He’s quite aware of the north eastern rust pandemic! Rust prevention and management should be absolute common sense to those living in problematic regions; that should go without saying.
But to those who do not live in such regions, do not think for a second a stealership or a service center won’t try to up sell the threat of rust. That certainly applies to the greater majority of Scotty’s audience, especially within a one minute clip!
I mixed pb blaster dish soap and transmission fluid all together and then sprayed it onto my undercarriage. No additional rust has formed since. It’s effective and cheap!
When?
I disagree. There are products like fluid film which isn't a sealer. It actually stops rust if there is any or prevents rust. In fact living in the rust belt. Fluid film will allow you to run your engine into the ground before to body rots around it. So yeah... maybe scotty needs to do his research.
A lanolin based undercoating in the rust belt is a GREAT idea every year in the salt belt. My go to is Blaster Surface Shield
@walker.wayne57 I’ve seen a video of just washing Vs undercoating and undercoating still edges. Even with a hose wash, salt is still dissolved and then the pressure further drives the solution deeper into the crevices
@walker.wayne5772washing it once a week still will not stop it in the rust belt undercoat or wax helps for a certain amount of time
@@vqdriveryeah i agree! sometimes can make it worse as will get in the bits you cant then you got water/salt mixture that will accelerate it even further
@@vfrtom9669 I wish I paid attention to undercoating and the different products available like 10 years ago!! I tell my friends and colleagues it’s never too late to undercoat until it’s “too late.”
@M R I have used a product called Star Brite Salt Off. I’m sure attaching that to your hose is better than just water. Or using a foam cannon soap hose attachment would work too. OR you could go nuts and put it on 4 jackstands, remove the wheels and do a full underbody detail using all purpose cleaner and detail brushes Lol. I truly I suggest any of the lanolin based products applied yearly ftw. It’s like doing timely oil changes. Maintenance is key
I use Fluid Film, and I'm in PA. There is a lot of salt up here on the roads in the winter. Every couple years I do a respray. So far so good.
What kind of spray you use link please. Thxs
Not sure where you are, but here in Maine it all rusts...even having a car from here lowers its value. Undercoating is essential for vehicles that see road treatment and salt.
@walker.wayne5772wouln't the salt accumulate right after driving again?
@walker.wayne5772 the salt will sit on the car as soon as you wash the car. If the salt is on the car then it's on the car. Doesn't matter if it's new salt or old salt
@walker.wayne5772 you have no idea what you’re talking about bud, as soon as you drive the car again it’s gonna get salt all over it again. It’s proven that undercoating is more effective than washing. And you really expect people to hose the underside of their car down in -20 weather?
Fluid film everywhere. Drove my Tacoma home from the dealer, pulled it apart, and laid it on thick. Filled the frame, rockers, everything. Not a sign of any rust anywhere.
Scotty, give your head a shake man!! I have a 2010 Silverado I had since new and still looks new because of Rust Check since new! Almost every other Silverado from that generation I see on the road has no fenders left from rust
Undercoating Rust Proofing should be done on All cars but especially trucks & suv. Scotty forgot how it is living in the Rust belt.
He said new cars not a 2010.
@@phatgringo2.0 doesn’t matter. If you live in the rust belt even new cars today will start rusting pretty quickly if not rustproofed starting early in it’s life.
@@Jhubes5.9 maybe a Chevy
@@phatgringo2.0 newer cars are better protected, but they too will rust with time. Scotty may be referring to people who buy new every 4-5 years. If you want your vehicle to last longer, get it undercoated.
I work at a toyota dealership as a detailer plus spray undercoat
TBH undercoat is crap it seals in moisture so rust from inside out, multiple times a week i am touching it up from peeling plus under the product there is surface rust
Toyota truck frames undercoat does not stick because there is a wax applied
Stay away from undercoat it is nasty stuff i recommend oil spray
How this guy has a faithful following is beyond me. Unreal. Like living in bizarro world.
My 2005 subaru was undercoated when it was new, its spent its whole life in Michigan and 18 years later still not a spec of rust
That's awesome and amazing
I’m from Michigan and this is the capital of rust! lol.. good job, is it a daily driver?
I am going to take my new subaru and I want to know what brand of undercoat you used, and I wonder if I need to do it at dealership. Thanks a lot.
I think Subaru have galvanized bodies…My wife’s Subaru Cross-Trek is rust free as well…
Scotty has never heard of oil based undercoats apparently. Not paint.
that is why Scotty is a millionaire and we arnt he cuts corners to save cash. but not always good thou.i get my car done every year if not every 2nd fall
I'm in the rustbelt, oil based coatings like krown or fluid film are great. Scotty is talking about hardened coatings which can cause issues.
If you live in the north or anywhere humid, fluid film it. Rust happens no matter what…it’s about how long you want to keep it away.
Tell that to all the Tacoma owners who had to get their frames repaired or replaced
@walker.wayne57 I like Tacomas, I really do. The thing is, you could take a Tacoma and any other truck that’s been treated the same way and then Tacoma is much much more likely to have the frame fail. It didn’t happen to all of them but definitely a lot. I have first hand experience. They didn’t have frame recalls for no reason lol.
@walker.wayne57 100% agree. Rustproofing also helps a ton.
@walker.wayne5772 It won't help much if you are driving through salty roads anyways. Which are plenty in north during winter.
@@expert69ableactually fluid film, krown, mobilarma, lps3 help a ton. I live right next to Lake Erie and my 4Runner is clean as ever.
@@brandonlee3892 I agree. I meant washing car bottom is less of value.
Spray once a year underbody with orthophoshoric rust converter and it will stop rust and protect. Doesn't attack paint.
I have had cars with and without extra undercoating and the difference is mindblowing for climate areas with winter.
Cars with extra undercoating look a lot better underneath and are much easier to maintain.
It is the perfect time to put extra undercoating on when the car is new as it has had no damage from spray or moisture or salt yet.
The rust protection from many brands is very poor indeed, especially for the lower price segment. But, with proper undercoating applied early in its life these cars can age more gracefully. I mean they will still break because of the cheap parts but at least you dont have to look at an underside that has more rust than an old tractor after only a few years.
Scotty, we live in the snow belt. I had my brand new '08 FJ Cruzr Ziebarted that same year. No rust no problems. And I'm glad because of the FJ frame fiasco created by Toyota.
Go back once a year for a touch up respray. Shame on Toyota for knowingly doing this. I also have a '76 FJ 40. Never undercoated. Perfect frame.
Ya right. Up here if you dont undercoat your car it will look like hell inside of 10 years. It also makes working on it as it ages worse and worse. Nothing sucks mire than rusted broken bolts or ones that round off. Makes a job way harder than it has to be. I undercoat my car myself it took 4 cans the first time I did it and now i use about 2.5 every year. Redo inside the doors, seams and underbody. Especially the brake and fuel lines. Costs me about $30 a year. Car is 16 years old, looks as good as it did the day I bought it new.
I thought rust proof spraying the brakes and exhaust is unideal
But am I going to remember to wash off my car once a week? Probably not. I’m busy. But can I do rustproofing on my car once a year? Sure. It takes a lot less time than remembering to clean it off once a week.
Lol, when I worked at a Toyota dealer, the underside of most of the new Toyotas on the lot or shipped in were already slowly rusting in tiny spots underneath. Happens with every car manufacturer to a certain degree.
I remember being a salesman selling cars in the 1970's in Az, The cars came with an undercoating from the manufacture and yet the boss put undercoating on the addendum sticker that was already on the car. It was what we called packing the car so the dealer had money to give back if needing more to make a deal. Awful business. But one could lose a sale for as little as $25 to another dealer if one couldn't give enough for ones trade in.
I had Toyota Yaris. It took it some 15 years to rust through. I believe it would be much better if it had undercoating when it was brand new.
I bought a used travel trailer and the previous owner had paid for aftermarket undercoating, I’ve heard some bad things, they probably just sealed in any rust that it had on the frame and now it will grow.
Most medium to high end trailers come with undercoat . Specifically in northern regions
Use Owatrol or some other penetrating oil, stick with it yearly, you can sand the "ugly" rust off if it bothers you. But oil it again after. never had any growing spots
I've purchased 3 brand new cars in my life and have never once seen an undercoating option nor has the salesmen mentioned it 🤷
So why did the compact Toyota pick-ups was nortirous to rust apart Scotty? Please explain that 🙄🤔
you should spend your money on something like fluidfilm or surface shield. Never use rubberized undercoating.
Use something oil based like fluid film. I don't care how well the factory preps and paints it. If you live in an area where salt is used over winter it will eventually rust.
When I moved from Phoenix to Chicago, I wasn't really aware of the rust problem. My Chevy truck was seriously rusted in a couple of years. I bought another used Chevy back in the desert and drove it to Chicago and got it rust proofed right away, it was either Ziebart or Rusty Jones (that will tell you how long ago this was), I don't remember which. That vehicle was practically spotless when I sold it a few years later.
Sorry Scottie. I have to disagree with not saving a vehicle with undercoating within the salt belt.
Had a 2007 Tacoma it was completely rotted through on several spots of the frame.
You mean rubberize undercounting right !? You are not talking about oil base counting ( lanolin ) because oil base counting is best thing to protect your vehicle chassis against the nasty salt and other type of debris from the road.
Fluid film and PB blaster surface shield or other lanolin oil undercoatings are great for us up north with salt!
It's a lot different if you live in the south Scotty like Texas a good undercoating properly preped and applied makes a big difference up north
My grandpa drove 800k km in he's hilux on the same frame and cab, 2 times a year he would spray the entire car with diesel and it never rusted 😂
I'm glad he survived 800000 km in that diesel smell. Since he sprayed the entire car with it... outside and inside...just kidding.
Lmao my 2022 highlander is already rusting 😂, cmon scotty
If you live in the rust belt, every vehicle's is eventually going to rust! If I bought a new vehicle now I would undercoat it myself!
I thought the newer toyotas were covered with plastic shields underneath, how could your already be rusting?
@@killdizzle I agree, I keep a couple cans of fluid film on hand for that purpose. Fluid film works pretty good, but it does wash off, so you definitely have to spray it on every year. I used to live in the rust belt of Pa.
@@aden3113in case you are serious, I took down the 7 panels under my 2018 Camry and found.....rust. and those panels held about 10lbs of rock, dirt, and road salt chunks. They don't cover the entire thing that's for sure.
@@aden3113 Rust causing moisture can easily find its way under the plastic. It's actually better if they just left the underbody open. Much easier to access when spraying oil base undercoating.
Dealer's offered undercoating is a waste of money but the once-a-year type of treatment is essential if you do a lot of road where they put de-icing salt. Regular washes during winter also helps.
Scotty doesn’t know what salt or brine can do to a vehicle. That coating doesn’t matter from the factory. Within weeks there’s chips and a place for rust to start. In NNY the salt and brine that gets sprayed accelerates the rusting process at an insane rate…
U can kill the rust with ospho, it neutralizes the rust, and takes out the charge, stops the electrolysis, puts out the fire. Then u can coat with undercoat, used oil, or pitch to lock out the salt and moisture
This is the worst advice you’ve ever given
True if you live in California or Washington Puget sound region, most of the cars are virtually rust free for 20 years. Undercoating sometimes accelerates the corrosion, all you need is moisture and salt getting into the cracks. Also poorly done undercoating of masking brake lines, fuel lines, electricals, etc makes repair within the undercarriage more difficult.
That's why undercoating is also what's called a rust convertor as well, it can help make the rust into somewhat strengthened metal and no oxygen means no rust
Next episode: don't waste your money washing or waxing your car. Auto manufacturers protect the paint with a clear coat that will never ever fail. Just don't try to prove me wrong.
Fargo Trucoat. 😆
You are wrong. The clear coat is very delicate and can be very easily damaged. That’s why washing, decontamination with iron remover and clay bars, a compound and polish to correct all the scratching and marring, then finishing the clear coat with a high quality ceramic coating is key. Protects the clear coat, and gives awesome self cleaning properties and very hydrophobic properties
@@Static_MK3Focus that was the joke....
What
This is great advice, I live near the beach and I knew a guy that had a forerunner that went 300,000 miles, but he said the bottom rusted out, there’s a local guy here that said he seals/coats the bottom of the truck, but now I know that the rust just stays in there and keeps on decaying, thank you for the information
I have a 2006 Honda Ridgeline, live in northern MN. It was rustproofed and did go threw the vat of zinc. What was undercoated wasn't really the frame it was other areas. Worst thing is driving your car and storing it in a garage in the winter. Freeze, thaw, freeze, thaw, freeze, thaw, that's what accelerates rust. And there's know getting around it, just try to slow it down.
Sorry, Scott. Might be wrong about this one, ESPECIALLY Toyota. I presently have 3 toyota models, built like tanks, run forever, trouble free, but the frame on our expensive Toyota Sequioa is RUSTED!! Also, the Sequioa models before the one we own had a recall for rusted frames.
Our friend owned a Sequioa that ran perfectly, but Toyota replaced his frame, and the same for a few other models. My Avalon rusts too, prematurely. Great cars, but they do rust, and undercoating does help.
Not a mechanic, but a chemistry student. If you can completely stop the oxygen from getting to your metals, you can stop rusting.
Idk if undercoating works, but please don’t give up on fighting rust. It’s doable, and so totally worth doing.
@walker.wayne57 Salt increases the rate of rusting, but you can totally get rust just from moisture. If you want to stop rusting completely, you need to remove the oxygen. A thorough wash/dry followed by a simple paint job should do.
@walker.wayne57 not true. I washed my truck and it Still rusted. Good luck getting into hard to reach/impossible places to get the salt or cause it will find a way inside "sealed" places
Hi Scotty, Do you need to apply undercoating for new Ford Maverick? Does Ford paint the chassis they way Toyota does it? What is difference between Oil base undercoating and Rubberbase undercoating?
Thnak you.
Scotty... Really? 😂 A *lanolin-based* undercoating both inside and outside the frame is priceless here in the Snow Belt. Look up REPAIR GEEK's 6-year series on this exact topic. Also, get a set of snow tires. It's totally worth it.
“Cars are built well and don’t rust, so don’t undercoat”
Also
“If your car is already rusted, don’t undercoat”
Hmm…
I took the car for rust protection a few days ago. The car is 4 years old. I took him for the first time when he was 1 year old. The protection was done with Krown oil, the chassis and hollow parts of the body. They recommend renewing every 2 years, but I renew the undercarriage protection every year because it is only more exposed. This is what I order the repairmen to spray a little with Krown spray when they service me.
I live in Slovenia in Europe
i live in northeast ohio i undercoat my truck once a year and wash it every other week. still rusts up here
Here in Latvia they put salt on roads very often, so people buy undercoating for used cars, but of course you either sandblast them or clean the rust off with an angle grinder. Just painting them with undercoating really solves nothing unless you have a brand new car and put on the type of undercoating which prevents all sorts of items puncturing the body, but that is more for trucks and jeeps and quite expensive.
This advert bought to you by Toyota who would love to sell you a new car after your existing one rusted away after 5 years living anywhere but the american south..
Our 2001 tacoma frame has been rusty forever. Recalled in 2009, added undercoating. Still rusting.
How did that work out for Toyota truck frames
I live in the salt belt and let me tell you, without undercoating yearly a brand new vehicle will start to noticeably rust on the body in 2 winters, the frame will start to rust in the first couple weeks and within 4-5 winters you’ll get scale. Idk if you’ve seen such a thing but it’s rot to the point rust chunks will fall off the vehicle. In your area it might be a scam, but here Scotty it’s an absolute necessity if you want a nice vehicle for a long period of time
So i just sprayed my rusty 88 chevy 1500 frame with some rattle cans of ruuberized undercoating. Just a light coat. Sounds like a mistake
if you didnt sckratch the rust away and treat it no matter what you did you wont get that far Aat least soundproofing is better and rust wise it cant get any worse .Take a spray fill it with distilled water and a veggie oil in an 20/80 ratio and spray it over epsecially in the edges if you want to keep it sealed or with a mineral oil/petrol solution to slowly get it off .All the best
This guy is partially right, doesn’t address products like Woolwax or Surface Shield or Fluid Film though…
2 things.
1. Yes there is a coating, but it doesn’t work if it is scratched through.
2. Rust doesn’t make more rust. It simply makes a place for more rust to form as it is created and exposed more iron under it. Rust is created from an oxygen molecule binding to an iron molecule (iron oxide). It happens when humidity (water) is on bare iron. It doesn’t spread like moldy bread.
The oil doesn’t allow for oxidation to continue procuring
Scotty you didn’t do your research in this. In just the Midwest of WI we install undercoat systems because the brine will begin to rust your vehicle within one season. It gets inside the doors drain openings and will rust them inside out. Same with the vehicle frames. It’s not just the exterior coat that matters you have to keep the brine from reaching inside.
I had the shop spray wool wax everywhere and inside the frame of my truck. Once a year I reapply myself. I plan to have them take everything off and spray once every 5 years or so. I live in the rust belt and so far so good.
I will say I do have a 21 year old Toyota rav 4 that’s garage kept but does drive in the salt. It was never sprayed with anything and hardly has any rust at all.
Only waste money on undercoatings if you bought a chevy. Because those things rust when you just look at them.
My friend always has his truck undercoated with a Ming coating and his truck in the rust belt still looks like new after many years
If it's absolutely new, definitely have it undercoated. MORE is BETTER. But if it's already rusting, Scotty's correct. As for POR15, and other similar paints that soak into and combine with rust,(after performing the required surface preparation of loose rust removal and cleaning with the special cleaner), they work for a couple of years, but if the vehicle is out on the salty winter roads, the rust WILL continue UNDER the special paint (even with oil-based undercoating layered over it), and both will PEEL & FLAKE OFF.
That's why they sand blast the surface rust off, and then coat it. It will definitely slow down rusting when you live up north where they use salt for winter roads.
@@charleslauharn7846 Definitely helps.
you are confused misguided
I agree that undercoatings that “seal” and get hard such as POR-15 are absolutely useless especially if you already have rust as it will in fact trap moisture and rust and in the long run make it worse for your vehicle. On the other hand, there are plenty of oil based undercoating products such as NHOU. You can spray NHOU and 2 years later it will still be wet and oily like the day it was put on. Unbelievable product.
Scotty: “don’t pay extra for undercoating”.
Me: “That’s nice… anyways”.
*proceeds to spray a second coat of FluidFilm under my rig that hasn’t rusted a square inch after 20 winters*
It's actually overcoating since it goes on top of existing coats, A coat of wax applied by hand is probably all that is helpful to seal out moisture where there are no scratches and give a deep lustre.
Yes but he’s talking about the frame
@@MrJruta ok thanks my bad.however it's still going over existing factory applied coats hence it will only be as chip resistant or rust resistant as the factory coats are.
Scotty
I have a vehicle from out west 1986 Nissan truck. Rust free. I live in Wisconsin, what do you suggest? Rubberized spray?
Lol Scotty obviously doesn't live where they salt the roads in the winter. Use oil based undercoating in those climates. The vehicle will last much longer.
I live in England and have had 2 toyota landcruisers both suffer severely from rust, Japanese metal dosent have a good reputation over hear.
Unfortunately Scotty doesn’t live up north with salt ,snow and -40. If you want a vehicle’s body to last 20 years up here in Canada use a yearly coating
A lot of components don't go through that bath, and some Toyotas from the mid 90s actually had serious rust issues which is what prompted Toyota to improve and lengthen their rust warranty.
Depends on where you live if you live on an island in Scandinavia. I would recommend getting a coding on a new car. Everything rusts here because of the humidity and salty air
So you guys buy new cars every 5 years or what
Rubberized under coating is horrible and will trap in the moisture but products like fluid film are good for protecting from rust. Motor oil works well too
You can tell scotty has never lived anywhere where it snows
Mechanics advice lol. Paint on any surface helps stop moisture from penetrating through the metal. They are oil based so they repel water which means contact time of h2o on metal is minimized.
I've had good experience with using under coating, especially for sound deafening
You don’t live in New England
I have a 91 Toyota Previa from Colorado. It's rusty underneath. I thought about treating the rust, and maybe a wax undercoat. Wax inhibits rust, BUT It's flammable.
All yours videos are great appreciated but I’m a little confused on this one. For example I’ve seen some 4Runners with bad rusty frames because the lack of maintenance 🤷♂️
Scotty just bought a new car should I get the paint ceramic coated?
Scotty what if you live in the rust belt or have harsh Winters and road crews spray liquid salt solution all over and you got to drive through it your vehicle's going to rust man. So mayve undercoat is beneficial
I have a 14 year old ford focus should I under coat it? It's got surface rust but not deep
Doesn't matter the brand, you drive in the snow regularly you'll rust out if you don't undercoat it. Fully boxed frames are worse as the salt will get in there and it's hard to clean.
HOWEVER Scotty is partially right, don't buy undercoating that is paint, you want a wool wax undercoating because once the rubberized undercoating gets a tear from a rock or something moisture gets trapped and rust holes start to form.
A wool wax based coating like fluid film keeps the vehicle rust free when used regularly (doesn't last forever, I use it once a year before winter) and if you wash your undercarriage after winter salt.
That ‘94 celica needs to be put in an automotive museum the day Scotty passes away.
What about places like Minnesota tho that use absurd amounts of salt in the winter ?