Isn’t Duplicolor a spray can paint??
I’ve not heard of Vansicle.
Plasti Dip isn’t a paint.
I had my Jeep painted with top of the line Sherwin Williams Urethane Enamel 4 years ago and it still looks like new. I just installed full steel doors and they were painted by the same painter with the same brand and quality paint. You can’t tell the difference between the new doors and the 4 year old paint on the tub.
I happen to be blessed with the resources to be able to afford one luxury and making my Jeep into something that will be attractive and reliable is the luxury I choose to have.
I try to buy the best that I can afford.
If The SW urethane enamel is too rich for your budget, Martin Senor paint from NAPA is made by Sherwin Williams and they have an economy enamel that should hold up longer than two years.
Have you tried rubbing compound to bring back the gloss, or is the paint still shiny but loosing pigment?
Good Luck, L.M.