The Fairly OddParents S06 E13 Wishy Washy

Timmy's wish for a magical car wash that rejuvenates anything that goes through it so his father can restore his beloved Striker Z sports car, but fossils of dinosuars and cavemen also go through it causing them to come back to life and run amok in Dimmsdale, as do Cosmo and Wanda, turning them into rebellious teenagers.