Does the Fitch fuel catalyst work?

Does the Fitch fuel catalyst work?
I've tried just about every additive out there on the market and they always pitch the same story. We can save you money on every tank while you use our product. Once I do a little research on all the products, I find the products use a small dose of metals to create their increase of mpg. Of course these metals will work for a short period of time, but after time though they compromise the quality of your fuel systems (ie. hoses, pumps, seals, etc...). I thought that it was going to be a lost cause until I tried Monster Fuel Catalyst. I stumbled on this fuel additive that hasn't given me any problems. It is completely based off the chemicals already in gasoline. Check it out www.monsterfc.com.

I've consistently received an increase of 8% on my fuel for over 35,000 miles!