Maxboost, is your car garaged? I think a garaged car makes a big difference on how long this thing last. Like I said, my car was never garaged (thats why I used to wax ever couple of months and thats why I chose to try out 5 star). I went to Phoenix during mid July and had my car outside the 100+ degree weather for a whole week (my aunt and uncle's car took up their garage). Maybe that took a toll on the wax.