Berryman Products Q&A | Chem-Dip in the Fuel Tank | It is not advisable to use any of our Chem-Dip immersion cleaners inside a fuel tank. Instead, we recommend soaking with B-12
Berryman Products - Carburetor Parts Cleaner: Aerosol Can - 76679711 - MSC Industrial Supply
Berryman B-9 Chem Dip Parts Cleaner with Basket - 96 oz. - Walmart.com