Both my cars are four years old, Toyota hilux workmate Ute, and a Subaru forester 2.5 I. The Subaru has a ceramic coating from new, the Ute was brought 4mths ago it was a work Ute, but in good nick but the paint was a bit sun damaged. After a wash and a coating of Limlex both are looking great, so easy to apply it was even better after 24 hrs.