The Fairly OddParents S06E13 - Wishy Washy

Timmy wishes for a super car wash that rejuvenates everything that goes through it in order to repair for Dad's Stiker Z sports car. It works, but when dinosaurfossils and cavemen go through it, Dimmsdale is in prehistoric chaos, and when Cosmo and Wanda go through it, they turn into rebellious teens, causing Poof to disappear as they never married or had him. Fortunately, Timmy manages to convince them to become normal again, and they save him from being eaten by a dinosaur and turn everything else normal.