I just got an email today about a box that clips over your fuel line that is supposed to make your car 20% more efficient. Sounds to me like a load of S*&t. Anyone heard of it? Here's the site
http://216.142.45.12/fuelsaver/index.html
Check it out, maybe its worth something.
http://216.142.45.12/fuelsaver/index.html
Check it out, maybe its worth something.