If it does what it says it will do, it would be nice, but with the smallest model priced at $275. 00, I think it would be cheaper to change fuel filters more often. I wish that website said something about how it works, rather than just telling what it is supposed to do.
I guess I'd also have some concern about whether or not the addition of something like this might become restrictive on fuel flow if it malfunctioned. Since we don't know how it works, hard to know if that might be a potential problem. We do know that bad lift pumps create problems for injection pumps, and the same with badly clogged filters.