has anyone tried these?

http://www.etieco.com/index.htm

or

http://www.fitchfuelcatalyst.com/

 

I read an article online about the fitch fuel catalyst...approximately 1 year ago. The article (not an advertisement) contended that the catalyst did nothing, except cost the buyer money. I'll look for the link again, and post it if I find it. I didn't buy one.

 

I could see this technology being useful on a diesel engine. I dunno about gas tho? I've seen where those FASS fuel filters for diesel increase fuel economy and power because they remove the air from the fuel. I don't think thats what these do tho?

 

Found the article I referenced above: http://www.fuelsaving.info/catalysts.htm

The author's bio: http://www.fuelsaving.info/biog.htm

I passed. But it doesn't mean you shouldn't try it...if it works, I'd be glad to reconsider (I'm at 20,500 miles since January 25, 2008); every cent counts.