Paint job help

I painted a Ford Ranger once with Tremclad spray bombs, it turned out awesome.
The only problem i had was the paint faded in a couple of years from gloss to semi gloss.
It still looked good though, and i could wash it off using a regular car wash.
The paint never peeled off, and i only scuffed it with a scotchbrite pad and buffed the rust scabs off with a cup wheel on a grinder.