The can is 16 fluid ounces. The directions states one pint treats 8 to 25 gal. of gas. One guy said he bought a used bike that had so much varnish built up in the carbs that he added a can to a 1/4 gal of gas and ran it through in the garage (water cooled engines). The fumes and smoke killed all living things, eight legged, 6 legged, and 4 legged, that had lived in his garage before. The can states that you can inject this stuff directly into your injection rails to clean out the injectors, and to remove carbon build up on the valves.