Rapid fuel additives, included gasoline and diesel additives , and bacteria killers , are specifically designed to optimize the performance of outboard and inboard engines. These additives improve combustion, reduce harmful emissions, prevent engine deposits and protect fuel systems against corrosion. Our range includes a wide selection, including petrol additives, that provide a comprehensive solution to fuel-related challenges in recreational boating. Choose maximum efficiency and protection with Rapid's high-quality fuel additives