Use ordinary tap water to save gas! Get double the miles to the gallon! Save money and stick it to the oil companies!

It sounds too good to be true, doesn’t? In fact, it sounds like a scam. But those are the claims made by the increasingly more popular Water4Gas system, which purports to show you how to build a simple device that will save you thousands in gas.

Unless you’re the CEO of an oil company, you’d like to spend less money on gas. We all would, which is what makes Water4Gas and systems like it so appealing. It would certainly be a perfect way to rob unsuspecting consumers like you of your hard earned cash.

So the obvious question is whether Water4Gas actually is a scam?

And the obvious answer is nope. Not a scam.

The system that Water4Gas shows you how to build and install in your car is based on the idea that hydrogen and gas will burn more efficiently than air and gas. Gas had to be mixed with air and burned to provide the power for your engine. Everybody knows that. What you don’t know, and where Water4Gas is supposed to help you out, is that gas is very inefficient.

Only 23% or so of your gas actually goes to getting your car to move. The rest is wasted, either lost as heat or simply left unburned and pump out your tailpipe. By replacing the air with hydrogen, you use more of your gas for power, resulting in less waste.

There’s absolutely nothing wrong with this in theory. The science is solid, since hydrogen is used to power lots of things, including rockets. Likewise, the electrolysis process that Water4Gas uses to produce the hydrogen gas works.

So does this theory actually translate into fact? Can you get better gas mileage with this system or is it really just another scam?

Surprisingly, it appears to actually work. Sometimes, things that sound too good to be true actually work, and this looks like it’s one of those times. Water4Gas actually hedges its bets, because it also shows you proven driving techniques that increase your gas mileage by a fairly substantial amount.