[DieselDoctor]

My local Farm Family store carries it. I've sprayed it both with rattle can and gun, with good success. I did a boat trailer about six years ago and it has held up very well, even being parked outdoors all the time.
When I used a gun to paint the trailer, I used all Valspar products, reducer, hardener, etc. and followed the directions on the can for mix ratio. If I had any complaint it would be that the paint has a strong odor, and the drying times are a bit longer than a normal automotive type paint. Take care to let the paint tack up quite a bit before a second or additional coat. The paint is dry to the touch, but remains somewhat soft for several days so careful assembly of painted parts is needed. Bottom line is that I would recommend the product and will use it again in the future.