Anyone ever heard of or tried intalling an HHO kit in your car to get better MPG?
Basically people claim that through electrolysis you can separate hydrogen from oxygen and by injecting the hydrogen into your cars air intake you can improve your MPG by 30-100%. A lot of youtube vids claiming it works but plenty of people saying it doesn't as well. Obviously the only way to know is to DIY, but it seems like an inexpensive experiment for potentially great reward ie Hummer's getting 35-40 mpg's.
Anyone tried it or know anyone that has?