I undercoated my truck with Cosmoline.
I removed all my inside door panels, under body covers, and wheel well liners. I then wrapped tin foil around all electrical connectors. I then mixed equal amounts of bar oil, linseed oil, and kerosene for thinning. I put it in a fruit tree sprayer and sprayed it everywhere. The kerosene thins for spraying, the Linseed oil helps the concoction firm up and dry. very cheap if you have the time and desire. I have about $20.00 in it and two days of my time. Been doin this for years with great success. The only thing you need to remember is to wash the outside of the truck after you are finished because the Linseed oil is hard to get off the paint after it is dry.
I agree Aaron! Here is a video I show using Fluid Film I bought at Home Depot. It only took 5 cans at about $10 each.
I get the 5 gallon pails on ebay for 150. Lasts for years. I use it on mowers snowblowers really anything metal that goes into storage.
Hey boss, There are many type of oil undercoating. Unfortunately, majority of them are bad if not horrible. They all claim to protect. But, in reality they lock moisture on surface that contribute even more to rust quicker. They best undercoating Ive seen in my life is Krown. I undercoated both of my vehicles 5 years ago and few month ago power washed bottom of my vehicles by accident and I was surprised to see originally painter metal, all components with that were coated with Krown got original black paint on them.
Yeah that is a concern. Heard they trap all the grit from the road too. Plus you have to re apply periodically. Alot of snake oil out there. The guy I am thinking of using does not recommend oil type on a new truck. Of course he's pushing the most expensive option. Thanks
I remember when I applied Krown, mechanic told me to find sanded road and drive for 10min. It helps to lock undercoating in place. Even after 5 year coating had consistency of peanut butter. 1/4 inch thick.
