How old a vehicle is this? I understood undercoating back when vehicle frames and sheet metal were not properly protected as made. Granted we don't get "as much" salt here in Kansas as some of you folks but we get our fair share and my 2008 Ranger that I bought used from the Chicago area that I just traded in looked fine underneith - never undercoated. Granted, just 4 years old.

 

The vehicle was 3 years old when the pic was taken. Its my previous truck, a 2007 Tundra.

 

I didn't even look at Toyota because of frame rust.

The truck that impresses me is my '01 Silverado. Eleven winters in near continuous salt bath and the only external body rust is a couple quarter sized spots around the windshield. The bottom of the box and chassis are starting to rust, but it's still much better looking than your Tundra.

No rustproofing, never garaged.

I hope my new 150 stays clean for a decade.

 

For us Canadian and US border towns. Go to KROWN.. Simply the best. Its not just a mist of oil that goes away, its a mist of oil like composition that has a light film that works the whole year. Yes when its applied it will drip for a couple of days but that is just it working its way into all the crevasses. Best time is summer time so that it has time to make its way all over. If work ever needs to be done, generally the technician will spend way less time dealing with rusted parts.

Krown FTW /thread.

 

Going in this morning for my second undercoating. I'v always delt with Antirouille Metropolitain here in quebec with all my previous vehicules. It looks alot like the Krown product. I use their environement friendly version. It's a non dripping oil. Cost is 89.95$ plus taxes. The shop I go to is the original place and where it all started in 1976. The guy's realy take pride in what they do and you get to see the oil applied from A to Z across the giant windows.

I also get them to apply AquaPel. This product has the same fonction as RainX but 10X better and last for six months. From my experience, this has to be the most under rated product. Most people I talk to have never herd of it.

 

Hey Knuckle Buster, Don't you live in Kentucky now with your new shop. I didn't know you were doing the undercoating now. We may have to talk.

 

I've seen rubberized coating dry up and fold off the metal surfaces to form pockets which hold water, sand, dirt etc. which then becomes a mixture of crud that doesn't dry out too fast and can cause rust to start up. Maybe that's no longer a problem with newer rubberized coatings but I've seen it on old vehicles enough that I don't want to use it. Other thing too is that it's probably easier for someone to make a mistake and plug up the drain holes with rubber coating than with the thin oil sprays.

 

Before I had my truck done with the rubberized stuff I went under my dad's 2001 ranger to take a look at his. 10 years later and the undercoating has not flaked off anywhere. No cracking either. It still looks good.

 

Yeah, that was just my 2 cents based on what I've seen over the years - maybe it's no longer a problem.

Gotta get my truck in next week for the re-spray.

Bottom line though is that if you live in the salt areas some kind of coating is a good idea if you keep your vehicles for a long time.

I have two cars bought in 83 and still going - hope to get at least 20 years out of this truck

 

I think on a truck it would be best to get undercoating no matter where you live. Seems like the underside could get chipped/scratched from rocks and debris.