Do you mean heavy grease that the washer couldn't remove? If so you'll need a heavy degreasing agent. If you mean just general pre paint cleanup, any paint jobber will stock that. Just ask for wax & grease remover.

Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.