2013 Silverado undercoating

[Tomo]

Not sure if this has been discussed here before. I bought a new crew cab z71 back in 2013 has about 35,000 miles now. Very happy with the truck except for 1 thing last year I noticed that the factory coating on the frame was coming off in large areas. I took the truck to the dealership and they told me that GM has issued a bulletin for this issue. They stripped the frame while on the truck and painted everything they could get to - following the bulletin instructions GM put out. Has anyone else had this issue? I bought this truck with the intentions of having it for a long time and I am still concerned about the top of the frame, the inside of the frame & the other parts they couldn't get to - these areas are showing small rust spots.

[GM-power]

It's going to come off over time. There is no stopping that. Being down south we don't have to big and issue with this, so I've never had a need to do a warranty corrosion repair. On the 3/4 ton and 1 ton work trucks I work on that have been a abused and taken all over, the frame just has surface rust. I honestly wouldn't really worry about it to much. Just wash it off good and frequently when you drive on the salt.

[Tomo]

I was thinking about this again yesterday and I looked up a few ideas. I might coat it with Fluid Film to give myself more peace of mind. Anyone have experience with this product? Seems to have good reviews.

https://www.theruststore.com/Fluid-F...-Can-P181.aspx

[Tim Christian]

We are already making Rockers, Cab Corners and upper wheel arches for 07-13 Silverados so it will rust the question is when.