9.8/10

Highly Recommended

2. Half Water Half Gas

Our second pick actually uses the same technology as our top pick - and again, we were suitably impressed by the efficient support, the money-back guarantee and the low setup costs.

The unique selling point of this guide is that it is highly suitable for the garage handyperson and includes easy to follow step-by-step video tutorials…

The Instructions are relatively simple and the materials should be easily sourced. Nothing overly complicated with this system much like the Run Your Car on Water setup. Should you have trouble sourcing the materials needed there is a list of suppliers given with the instructions. 

All in all, it’s a really great package which means you can be enjoying massive fuel savings for very little, very quickly. So why only four stars (9.5 out of 10) ?

Well, perhaps we were spoiled by our top pick, but we found the the price is a bit higher than our top pick (currently priced at $67) - thus we decided to knock off a star.

However, the 3 extra bonus package plus 36 months of FREE updates included together in this guide help to make up for that.

Also Recommended

3. Water4Gas

Although Water4Gas IS the highest priced product in this review, there is a VERY good reason that many people have hailed Water4Gas as one of the Top 3 hydrogen gas savers. As a matter of fact, this product was only knocked from it's #1 Position in the review because of the $49.97 sale at Run Your Car On Water & Half Water Half Gas.

Water4Gas has features and bonuses you just won't find anywhere else, period. More importantly, it's not a one-shot type of program. When you purchase you're going to get full access to ALL updates and breakthroughs. So when the Water4Gas team discovers a simple modification to the system that increases it's efficiency by 10%, you can be sure that you're going to know about it and have full access.

Anyway, here are some of the features that we feel puts Water4Gas into the top 3:

• - The easiest diagrams ever! Ozzie uses pictures instead of symbols. Any 5 year old daughter could probably slap one of these together using these diagrams.
  
  
• - Ozzie shows you how to get a tax credit of up to $2,000. The forms are included and he tells you exactly what to fill in.
  
  
• - Permission to replicate the setup over and over. You could pretty easily start a small business building and installing the Water4Gas setup for friends and family.
  
  
• - Ozzie explains everything in a way that is not only easy to understand, but is easy to repeat back to other people. This is important because it's pretty hard to stay quiet about it, you know you'll want to brag at least a little bit!
  
  
• - The latest update included a new section with the multipack or 6-pack design which works AWESOME for bigger vehicles like large trucks.

Also Recommended

4. Water Fuel Expert

Water Fuel Expert is our fourth and final pick, and it actually includes 3 separate courses to help you create your own fuel efficiency system.

They report upto 65% fuel efficiency increases - and again, the guide was presented in a clear and easy-to-follow format.

Here are some of the key features of Water Fuel Expert:

• Tested over 15 years with good results and a good price at $47.00.
• Revised for 2008 with full supplier details for the US, UK and elsewhere
• A 'mechanics-written' guide with good back-up support, which we regard highly. This guide showed good levels of support.
• Over 1400 installations with a good track record.

The difference between this and the other 3 sites was simple, however - our support ticket was not responded to. If you are a mechanic, you will be able to understand the guide, but it will take some time for the lay person to really decipher its complexity.