That's a nice ride! Love the shine! Do you get to keep it in a garage? Everyone has different abilities as to where they can park a truck that big. Most Garages don't allow for a truck of that size to fit so many must stay out n the elements. it's the elements that determine how long the Ceramic, Polish, Wax, or whatever coating you apply will last. If you live in an area where acid rain is common, probably 6 months at best, whereas in the middle of the country (Kansas) away from salt water you will probably get 12-18 months. Southern TX, NM, AZ probably 2+ years. Location, Location, Location!!!