Brown's Gas / HHO- gas is the latest innovation to increase gas mileage, increase power and improve emissions. Your car will not be totally dependent on water but will be a hybrid of sorts by utilizing water as a catalyst once it is broken down to Brown's Gas also known as HHO. By using Brown's Gas one can expect to see and increase in gas mileage of 15 - 50%. This is not new technology but is starting to get rediscovered as gas and diesel prices continue to increase.
In a carburetor, the air that is filled with Hydrogen will explode milli seconds faster than air with no hydrogen, resulting in that the whole combustion camber that's filled with hydrogen explode all at once when the spark plug activate a spark. This result in a better combustion of the fuel. The amount of energy in it (442 Kcal) add "fuel" to help push down the piston. At normal temperature and pressure, HHO can burn when it is between 4% and 94% hydrogen by volume. If you cannot get to 4% nothing will happen.
In general a large size browns gas / HHO fuel saver can only introduce about 7mml brown's gas per second into the carburetor with a 15 amp switch, that is enough to give you a 35% (average) saving on your fuel bill.
Vancouver Pickup Truck gets 50 percent more mileage after HHO installed
With electricity from your vehicle's battery brown's gas is being produced
from water (and often catalyst.) The Brown's- HHO Gas is directed to your vehicle's air-intake.
In general, because the Brown's- HHO Gas is, mixed with air, a highly explosive gas you
will be needing less conventional fuel like gasoline, diesel, LPG, biodiesel etc.
Maybe even more important - air pollution will be significantly reduced (60-90%). For today most HHO fuel saver systems work with the air-intake system.
Above: an example system by water4gas systems.
Which fuel saver would be the best for my vehicle?
Safety first. Always choose a brown's gas fuel saver design with isolated electrodes or electrodes that are not be placed in the gas. Connections could very easily reach a temp. that could ignite your gas, or a connection can come loose causing spark making it very unsafe. your flasback arrestor will do nothing for this situation.
If your vehicle has a oxygen sensor and you use the Air-intake system it is ecommended that you install a lambda (EFIE) control otherwise no maximum fuel savings. (A fuel to air mixture of about 14 to 1 is recommended. With a Lamda / EFIE module you can fool the CO2 sensor and it will give you much better gas mileage. EFIE unit. (found on Ebay).
Easier to install is the oxygen sensor extension EFIE (new) - This gas saving extander works by moving the sensor further away from the exhaust flow, the sensor and ecu would lean out the A/F(air fuel) ratio enough to save 5%~7% on your gas bill. Easy to install*Simply just screw it on to your existing Front O2 sensor. Burns cleaner, saves gas, and gives you more quicker throttle response.This Extender is Universal, fits all the cars except1999 or older Toyota o2 sensors that use 2 bolts to attach to the exhaust pipeSaturns and some GM cars will need to modify the extender to fit.
Oxygen sensor extender new (found on Ebay).
An Efie / Lambda control or this extender is recommended if you have HHO generator installed, without the Efie / Lambda control or extender, the sensor and ecu will think there are too much air flow but no enough fuel to support, which will turn into "rich" model and you will not achieve best possible fuel savings. (most vehicles start saving fuel even without the Efie/Lambda control or extender installed because of the much better combustion etc.)
In general - the more browns gas / HHO gas your fuel saver produces the more savings. It also depends on how much amps your HHO generator takes compared to the HHO Gas output.
Air-intake Browns- HHO Gas fuel savers work very good for most engines like petrol, gasoline, LPG and (bio-) diesel. Expect 15% or MORE fuel savings. BIO-diesel gives better results than normal diesel. HHO generators are are highly recommended for trucks. Use at least a 60 liter/hour generator for 4 and 6 Cyl. 8 Cyl. >120 liter/hour (trucks - > 200 l/h.)
For older diesel engines expect very good results which much more power. Your diesel vehicle will drive like a petrol vehicle.
For gas / LPG vehicles without CO2 sensor (or with the oxygen sensor extender installed, or with lambda control / efie), BG air-intake injected fuel savers work fine. If the right size used and properly installed expect at least 15%.
For petrol engines it is possible (discovery May 2008) to add it directly into the fuel line. expect (even) better savings (35% average). You won't need lambda control or efie system anymore. Power increases significantly compared with the air-intake system. This fuel line injected system means better safety and more efficiency than the air-intake injection system. So with fuel line injection you'll be needing less Browns Gas. More info in August 2008.
Like in the videos on this page sometimes the vacuum hose has been used as BG intake.
As for your BG fuel saver cleans up your engine expect even more savings within 2 weeks use because of a more efficient running engine. Also will it run more smooth and silent.
NOTE: for HHO generators with a flat-plate-design it is possible to get even more efficient browns- HHO gas production with pulse power. Watch Pulse Power Video
In general Brown's Gas / HHO Gas fuel savers are easy to install.
Not all manuals by the different manufacturers are complete.
Make sure you watch the following:
Do not install near by any excessive heat such as, muffler exhaust. Otherwise your fuel saver could overheat and the water will turn into steam. Plastic fuel savers might even melt.
Do not install near by moving parts such as fans or belts
always secure your fuel saver to a steady place
do not leave any wire or hoses hanging or lose, always attach
do use distilled water only
Make sure power shuts off automically when engine is turned off
Make sure you install a flashback arrester in the gas line. A (extra) bubbler is recommended.
How to use a Browns- HHO Gas Fuel Saver
Depending on generator design, use tap water, distilled water, or distilled water with catalyst. Plate designs with a very short distance between the plates sometimes work with tap water, a bigger distance between the plates will need a catalyst.
Only refill your fuel saver when cold and engine turned off.
Only turn on your fuel saver when engine is running.
Do not exceed power recommended by the manufacturer.
(in general 10-20 amps.) (24 volt up to 30 amps.)
Do not modify your fuel saver as of this could be dangerous,
void manufacturer's warranty or destroy your fuel saver.
To prevent freezing, add a little anti-freeze in the wintertime. Works fine.
What Electrolyte / Catalyst should I use for my Browns- HHO Gas Generator?
Life expectancy will vary depending on many factors - electrical input, running amps, water mixtures, chemicals used, etc. Electrodes of stainless steel will rust. A few manufacturers use covered terminals / electrodes for better durability. In general this technology has been used in many vehicles with noticeable results in increased gas mileage. With the price of gas today, it's worth a try to save up to 40% or even more on your Gas bill. More information about Brown's Gas / HHO electrode designs.
Your battery?
For small and medium sized vehicles do not draw more than 20 amps from your battery otherwise you'll damage it.
Hy-Drive generator installed on diesel TRUCK - Video:
General Brown's- HHO Gas fuel saver information:
A good Hydrogen system produce (at least) about 0.5 liters per minute
Ratio 5 : 1
(5 liters Hydrogen) : (1 liter of fuel)
At 100 km / h you travel 1.6 km / minute (100km / 60 min.)
You average 16 km (example) / 1 liter of fuel
Time to travel 16 km = 10 min. (16 km / 1.6km)
Hydrogen production 0.5 liter / min.
10 min. = 5 liter Hydrogen
5 liter Hydrogen = 10 min. = 1 liter fuel
Some References - dated 20/01/2008
from wikipedia (The free encyclopedia) http://en.wikipedia.org
For Diesel applications; When the hydrogen enriched air is compressed, the diesel fuel is introduced with a resulting improvement in fuel efficiency and maximized combustion of the fuel.
US4,573,435 (1986) Glen Shelton Apparatus and method for generating hydrogen gas for use as a fuel additive in diesel engines.
A 50% reduction in fuel consumption, at idle, was reported by numerically analyzing an on-board hydrogen reformer operating at 80% efficiency.
G. Fontana, E Galloni, E. Jannelli and M. Minutillo (January 2002) " Performance and fuel Consumption Estimation of a Hydrogen Enriched Gasoline Engine at Part-Load Operation" SAE Technical Paper Series (2002-01-20196): p. 4-5
A 50% reduction in fuel consumption is equivalent to a 100% increase in kilometers. When Brown's Gas burns it forms water, resulting in "cooling the combustion chambers of engines", effectively "allowing for greater compression ratios"
"Water injection" Wikipedia, The Free Encyclopedia. 7 January 2008, 19:40 UTC. Wkimedia Foundation, Inc. 10 Aug.2004. <http://en.wikipedia.org/wiki/Water _injection_%28engines%29>
EFIE unit. (found on Ebay). 
