So is it for real or is this just some people trying to make money off of promises that they can't keep. They have some really encouraging videos on their site that sure makes it look like it could be for real.

Initially I thought I was going to go ahead and buy the book and start experimenting myself like I did with the Water4Gas stuff. Unfortunately I am not even going to make it that far on this one. My initial research has already convinced me that there is not even enough here to make it fun to play with.

If you want to know if it is for real then all you have to do is go to ebay and try to buy one. Trust me, if people could build these then they would be all over ebay by now. I know if I could build them then I would certainly start trying to sell them for a profit. Unfortunately all you are going to find is more books for sale and no generators.

If you remember with the HHO fuel stuff you can buy all of the items for that on Ebay. People make them for you and sell them to make a profit on it. This way at least saves you some time while you are finding out that it does not work.

The plans for these generators are apparently difficult enough that people are not even making it that far. I would definitely say do not waste your money buying these books.

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The first thing I did was to build the HHO generator and install it in a 97 Toyota. I built the generator using plans from the Water4Gas book but I used plates instead of the steel wire the book talks about. I have already wrote about that elsewhere and don't want to go over the whole thing again. Point is that I installed a working HHO generator.

We then drove the car for two weeks monitoring the fuel consumption and comparing it to earlier readings that we had.

When we first hooked up the generator and started the car we noticed that the RPM's increased immediately. That gave us a little hope because one of the claims that they made about the HHO was that it would increase your power.

Unfortunately the only effect that we noticed for the entire two weeks was that the RPM's were higher. There was no noticeable change in fuel mileage or in power for the engine. Not to worry though because the book stated this may happen and what we will need to fix it.

So on we go to the MAP sensor enhancer. This is a device that you build and then wire in with your map sensor. It is supposed to lean out your fuel mixture and allow you to actually see the gas savings you are hoping to acheive.

Not too hard to build and all of the parts I needed were available at Radio Shack. We installed and adjusted the MAP sensor enhancer per the instructions given in the book and gave it a try. One thing that I can say about this sensor. You don't have to worry about the engine having to much power anymore. This has the opposite effect.

Of course you are screwing with the fuel to air ratio that the cars computer is trying to maintain so what do you expect. The really disappointing problem here is this. Less engine power and still we have not really saved any fuel. I have to admit that we did not run it long this way. Only a couple of days but the results we had in that time were not impressive. It was hard to say off of such a short time but it looked like we were actually burning more fuel.

The next thing to try was something that was not really in the Water4gas books but they did tell you where to find out about it. This was the O2 sensor enhancer. This animal was a bit more complicated than the map sensor enhancer and carries a little more risk. That risk is that the more you lean out your fuel to air ratio then the higher the temperature of the exhaust gas is going to be.

After actually buying one of the O2 enhancers and doing some research on it then I decide I am not willing to risk an engine  to continue with a test that obviously is not working.

There was a list of fuel saving techniques that came with the Water4Gas books that will help you use less gas. You know, things like keep your tires properly inflated, don't take off too fast, make sure you are doing the PM type stuff like replacing your air filter and clearing maintenance codes.

These are of course things that work whether you install an HHO generator in your car or not. Not a bad idea to follow their suggestions if you want to make sure your car is getting the best mileage that it can.

So here is my conclusion on the whole DIY HHO fuel plans. I wanted it to work. I tried hard to get it to work. It does not work. Save your money and use it to buy a new air filter instead of one of these ebook plans. The new air filter is going to save you more fuel than the Water4Gas books will.

A little bit back I started experimenting with the HHO fuel saver plans and the most popular one is Water4Gas so I tried it out first. I know a lot of other people are thinking of trying it out too so here are my Water4Gas complaints.

The books are pretty well written and easy to navigate. The parts can be a little difficult to track down and you might have to order some of it from the internet. Not really their fault for what parts are available in my town though.

Over all I like the concept of HHO Fuel Savers but I have not talked to anyone that made those massive gains they claim though. I guess I will just have to find out for myself.

My biggest Water4Gas complaints are about the actual design of their generators.

They are not quite as easy to build as they claim which is because of that plexiglass tower that goes in the middle of it. It has to be pretty thick, at least 1/4 inch, and is a little difficult to cut. They also have you just wrap the wire around the tower after you have it cut and then glue the wire in place. I would recommend that you notch the tower instead. Too much risk of a short if you just glue it.

I also have a problem with the lid that they call out for. It is just a plastic lid that will fit onto a mason jar. It is not especially flexible so it does tend to crack, especially while you are trying to drill it. If you do try it out get a 3" Qwik Cap from Home Depot in the plumbing section. It is made out of thick rubber and will work a lot better for you.