Fluid film on 2015 3500hd

Stihl3500 · February 4, 2016

Anyone using fluid film on there new truck? Have read good and bad reviews as far as it softning original coating...any input would be great thanks

crankman · February 4, 2016

If your meaning that clear stuff they put along the bottom edge of your truck. that stuff works good. Cant tell you all the oily junk that i wiped off easy. Im not having any issues with mine. But i havent pulled it off and dont plan on it.

amc31b · February 6, 2016

Don't use fluid film on the GM wax frame coating. You can use it every where else on the truck but do not apply it to the black frame. Fluid film softens the black frame coating and makes it come off, ask me how I know. I also don't think you will need to fluid film a new truck. The undercarriage takes a few years to discolor, I would wait till yours does and then apply once or twice a year.

Stihl3500 · February 7, 2016

Thanks for your input. I assume that you tried it? I have friends that use it on older trucks,equipment. I wanted to use it as a barrier against the salt and magnesium chloride... I work for the dot and that stuff destroys everything it touches.I know the fluid film works good. I'm glad I read up on it before spraying.

99silveradoz71 · February 7, 2016

I've used it on my wife's Sorento, mom's Buick, and my Silverado wth good results.

amc31b · February 10, 2016

Thanks for your input. I assume that you tried it? I have friends that use it on older trucks,equipment. I wanted to use it as a barrier against the salt and magnesium chloride... I work for the dot and that stuff destroys everything it touches.I know the fluid film works good. I'm glad I read up on it before spraying.

Yes I didn't know any better and applied fluid film all over everything under my Silverado, just like I did to my other vehicles. Any spot on the black frame that was cracked or worn thin, the fluid film majorly softened it up and the coating wiped off when I barely touched it. The black coating that was intact and still adhering to the frame tightly was OK but definitely softer than it was before the fluid film.

That is why I stress, do not get the fluid film on the black frame coating! You can use it all over everything else but do your best to keep it off the black waxy frame coating junk that GM uses. Fluid film softens and weakens the black coating and it will come off. I can take some pictures if you need proof.

Don't get me wrong, I like fluid film and recommend it highly. I treat all of my vehicles twice a year and the rust has basically stopped. I live in CT where the DOT applies the liquid ice melt which is the worst type of road treatment for vehicles. GM's waxy frame coating crap does not play well with other petroleum products and fluid film is one that it really does not get along with. Many, many users here report that anywhere you spill oil on the black frame during oil changes, the black coating gets much softer so it is not just fluid film that weakens it. This problem is more from GM's choice of frame coating than it is from fluid film or any other petroleum product you might be using on your truck.