[phdibart]

What kind of undercoating is it that cost $599.00?

It's called ResistAll. I emailed the dealer and they gave me this link ResistAll Undercoat Video - CalTex

 

[phdibart]

I am from New York and my truck gets regular undercarriage washes.. Here is the Thread showing its frame:

What A Colorado Frame Looks Like After 5+ years and...

Your frame is immaculate! How regular is regular? I get the underbody washed every 1-2 weeks during winter at the local auto wash.

 

[phdibart]

I would keep your money and use another product. I have a 2018 Canyon and still looks pretty good but going to try some at home products others have used on this forum. One will be cavity wax in the frame rails.

Ya, I've changed my mind on it. I'll just be diligent about keeping it clean in winter.

 

[phdibart]

Thanks to everyone who posted or voted in the poll. It seems that a good regimen of keeping the underbody clean is probably the safest way to go. There are just too many variables with undercoating (e.g. which product is applied, and how lazy the person applying it is) to say it's either a good or bad thing, and to justify paying the dealership $600 to do it.

 

[phdibart]

Power washing undercarriage is bad. The power blasters at the car washes are about the worse thing you can do.

There are far too many precious harnesses that can be damaged. The high pressure will push grime deeper into connectors which can later on cause complete failure.

It is a stupid common problem on these trucks. Especially diesels which have additional exposed wiring.

The repairs on those harnesses could be anywhere from $50 to $5,000.

I've never had an issue and did it every 1-2 weeks during winter for four years with both my Land Rover and Cadillac.