Mpg

This is a current BS call.
A friend of the wife came over one day trying to get her to invest in a home business of putting Hydrogen generating cells in passenger cars.
It's an ok idea that does work, but there is currently NO WAY you are going to make an amount of Hydrogen to make much difference at all (let alone the BS 10 mpg she was telling the wife.)
Then there's the liability part of it by doing it out of a garage at home. :D
Hydrogen is highly explosive ya know.
That woman was always chasing some scam trying to get rich quick and wanting the wife to put money into it for her (she didn't have any of her own)
I finally ended up running that stupid bi**h off.