Comments about Wallace and Sons Tuf-Enuf Cleaner:
This is far and away the best product I have found for making a dirty, greasy engine room squeaky clean and like new. Cuts grease like nothing else I've found, and goes a long way. Also good for removing black streaks on fiberglass, but strips wax at the same time. I buy a gallon each season. Careful on vinyls--it will remove most stains but can also strip the protective layer.