Silicone Spray

So I'm working at a boat dealership that specializes in selling Boston Whalers and other powerboats, but also sells a couple models of the Yamaha Waverunners. I was told that after you use your waverunner, you are to spray down the entire engine compartment with silicone spray to prevent rust and saltwater deterioration. Apparently it just forms and nice coat and beads of any substance that is corrosive or whatever. With that I got to thinking, would that be the same with my Tacoma? Granted there are a million different sensors under the hood of the 2nd Gen and would not want to screw them up, but for the hoses and everything else could this keep your engine looking like new? Has anyone ever heard of this or tried this idea? I'm in the North East and during the winter, my truck's under carriage and engine compartment takes a beating with all the salt. I'm curious for some feedback. Thanks

 

I wouldnt spray the engine bay, but I spray a little on my Icon's after every other wash or so to prevent salt water corrosion (i live less than a mile away from the beach).

 

I just got some andres devil horns, no more chrome coating chipping when the whole this is polished aluminum

 

I used to spray silicone spray on a rag and wipe down all of my hoses on my 77 chevy pickup. I have never sprayed down the entire engine so I can't speak on that.