What is your intended usage? In the gas tank? Fuel rail? What problem are you having? If you don't have any, I wouldn't use it unless you plan on changing your fuel filter. The can version I used with works on both, but was forumulated for direct usage where it gets best results. Putting it in the tank is not much better than multiple runs of Techron... in fact worse, since you WILL want to change the fuel filter.