Resurrecting this thread. I used one can of fluid film on the front frame section on my truck. I think it stuck pretty well, I can see the wax/stays where you put it advantage, but I wasn't crazy about the coverage and I felt like it would have taken 5 cans to do what I wanted to do on my truck. I remembered back on my original stint back in the midwest, a really good trans builder and general mechanic used to spray all his cars with straight bar and chain oil out of an undercoating gun at 120 psi. I just happened to have a gallon of bar and chain oil, and it is as clingy and stringy as I remember it was 30ish years ago. It took less than 1/2 a gallon of bar and chain oil, and if you can get the air pressure consistently over 100 psi the coverage is really good, and I think it creeps pretty well too. The only down side is that the bar and chain oil does drip more if you over apply it versus fluid film. I don't drive my truck much in the snow, but I'm going to take a look in the spring and compare areas where I applied each product. Stay tuned.