looks simpler than the HHO talk I hear on here too. I'm not very knowledgeable about cars so anyone want to give me a reason not to go get this Hydro 4000?
O, and excuse me if I'm having a brain fart, but isn't 9.4 mpg to 23.2 mpg a 147% increase, not 61%. Am I retarded or am I right?
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