We have had good success with both gasoline and diesel engines. The important thing to remember when deciding what you need is the engine displacement. One ODH-HALO is good up to a 6 liter engine. Anything larger and you may need a second ODH- system.

Q: How big is the ODH-HALO? Will it fit in my car?

A: The largest component of this system is the cell-cluster/reservoir assembly, it is approximately 14 inches tall by 2.5 inches in diameter. We can not guaranty it will fit in all vehicles, but we have not come across one yet where it would not fit. By using a little imagination and effort, you should be able to find a location for it in your vehicle.

Q: Will this system work with diesel?

A: Absolutely! We have had great results with diesel engines!

Q: Will this system work on big-rig trucks?

A: The ODH-HALO is limited to a 6 liter engine or smaller. We are developing a system for big-rigs and will have it soon

Q: Water freezes, so how do I use a hydrogen boost system in the winter?

A: We have a proprietary method of dealing with winter which is revealed to customers. The bottom line is; you can use your system year round!

Q: Is the hydrogen dangerous?

A: Hydrogen is an extremely volatile gas, which is one reason why making it on demand is the way to go. There is no hydrogen stored in your vehicle! The system only produces only what can be used by the engine and when the engine is shut off, the production stops. There is only a small amount of hydrogen in the system at any given time and if there was an accidental ignition there would only be a loud bang and the rubber filler cap would blow off without causing damage to the system or the engine on which it was installed.

Q: Will using a hydrogen boost system void the manufactures warranty?

A: Using a hydrogen boost system will not void the manufactures warranties, according to US Code -Title 15, Chapter 50, Sec. 2301-2312 of the Magnuson-Moss Warranty Act.

Q: Will the cells in the ODH-HALO break down and need to be replaced?

A: The ODH-HALO cells are guaranteed for life and should never fail if the system is operated within our guidelines. Other components such as the pump may need to be replaced every couple of years or so and we can provide them for a nominal fee. 

Q: Do you provide everything needed for installation?

A: Presently we do not provide wiring, switches, relay, 3/8" plastic tubing. These are common, readily available and inexpensive items that can be purchased locally for less money than we could provide them for. If you have your mechanic install the system for you, they should have most of these items on hand and the plastic tubing can be found at Lowes for about $6.

Q: How hard is it to install a ODH-HALO system, can I do it?

A: You do not need to know electronics or any special skill to install a system like this. We do not know you personally, so we can not say with any certainty whether or not you would have any difficulty completing and installing a system. We can say that if you could install a set of fog lights in you car, you should be able to do this because the wiring is identical. Full instructions are provided and if you do not think you could successfully install it, your local mechanic would have no problem doing it for you.

Q: Do I have to do any modifications to my engine?

A: Depending on the year, make and model of your vehicle you may need to use an “Electronic Fuel Injection Enhancer” (EFIE) device or a "Mass Air Flow Controller Module” MAFCM to lean out the fuel mixture before seeing any improvement in your gas mileage. The reason for this is because OBD2 and 3 car computers (ECU) often enrich the mixture in response to the better engine combustion when burning a hydrogen/oxygen mix. Essentially the ECU thinks the engine is running too lean and it enriches the fuel mixture. Unfortunately if this happens, it counteracts some if not all of the benefit of burning a hydrogen/oxygen mix. In some cases MPG may even drop when using a hydrogen boost system. To compensate for this you can use either an EFIE or MAFCM to counteract the ECU enrichment. We automatically include a MAFCM (For all voltage based MAF sensors. Frequency based MAF sensors must use EFIE ) with all our ODH-5 systems. We can not tell you which type of MAF/MAP sensor you may have. You will need to contact a dealer mechanic or an auto parts store sales clerk to determine whether your particular vehicle’s MAF/MAP works on a ‘frequency’ or ‘voltage’ based signal. We do not sell EFIE devices, but if you would like to try one, there are many sources available on the internet for them and several vendors on Ebay as well.

NOTE: In testing on some vehicles where the ECU is enriching the mixture in response to the introduction of HHO, we have found that by reducing the amperage of the hydrogen boost system to around 5 amps of current draw, the low amount of HHO mix being introduced into the engine is not enough to trigger the ECU to enrich the fuel mixture, but it is still enough to get a significant increase in MPG. For example; one customer with a 1.8 liter VW achieved 6 MPG increase running between 3 and 5 amps. This trick may not work with all vehicles, but it is worth a try if your ECU is giving you a problem and you do not wish to use an EFIE or MAFCM device.

Q: Can the cells overheat?

A: Yes overheating is the biggest problem with electrolytic cells. One reason is that most people run the amperage too high in an attempt to get more hydrogen and higher amperage will give you more hydrogen, but it also drastically increases the heat. This is why we have designed our ODH-HALO system with a cooler and circulating  pump which keeps the system running at slightly above ambient temperature.

Q: Can I convert a gasoline engine to run on straight hydrogen instead of gasoline??

A: Absolutely! Here is an excellent video with hydrogen researcher Roy McAlister showing how to convert a small 5 HP motor for less than $25! The principles and parts are the same for larger car engines as well.