Thank You Silvey01,
A ways into your reference is a link to this paper:
http://www.panaceauniversity.org/Hyd...Combustion.pdf The fuel mpg claims are about on par with that of the sellers on e-Bay, only the provider has no apparent conflict of interest. If you look at these systems on e-Bay, you will see that the vast majority of the feedback the sellers receive are positive. I will say that only a small percentage of the feedbacks report the mpg impact, but there are a pretty good number of repeat customers.