Adding hydrogen to combustion using hydrogen generator from water
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GLA250 H247, C300 2019 Coupe
Adding hydrogen to combustion using hydrogen generator from water
lately i noticed in my country, some peoplevstarted to add hydrogen generator to their car combustion produced from water, claimed additional milage up to 200km.
i just wondering will it cause any damage to engine/ piston etc. will the sensor started to give blaring error message because of different air/fuel mixture.
i just wondering will it cause any damage to engine/ piston etc. will the sensor started to give blaring error message because of different air/fuel mixture.
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lately i noticed in my country, some peoplevstarted to add hydrogen generator to their car combustion produced from water, claimed additional milage up to 200km.
i just wondering will it cause any damage to engine/ piston etc. will the sensor started to give blaring error message because of different air/fuel mixture.
i just wondering will it cause any damage to engine/ piston etc. will the sensor started to give blaring error message because of different air/fuel mixture.
Thread Starter
Junior Member
Joined: Dec 2019
Posts: 31
Likes: 2
GLA250 H247, C300 2019 Coupe
😅😅😅😅
i thought you all going to discourage me from installing it🤣🤣🤣🤣
so far i have not seen merz using it..yet
the unit cost about usd300. price varies depend on size of the generator. some generator you only need to refill with water every 2000km.
claimed improvement on milage about 100km to 200km per full fuel tank.
claimed better acceleration.
i noticed it has been used on car before 2018.
disclaimer. i do not know what will it do on modern car.
i thought you all going to discourage me from installing it🤣🤣🤣🤣
so far i have not seen merz using it..yet
the unit cost about usd300. price varies depend on size of the generator. some generator you only need to refill with water every 2000km.
claimed improvement on milage about 100km to 200km per full fuel tank.
claimed better acceleration.
i noticed it has been used on car before 2018.
disclaimer. i do not know what will it do on modern car.
Last edited by ahhl; Jun 28, 2025 at 09:14 AM.
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From: Spain UTC/GMT +2 hours
W213 All-terrain
It costs 4KW electric energy to produce 1KW of hydrogen power so if those 4KW are free like the ones from solar panels, maybe it worth. But usually those free 4KW are not free as the house should have hot water, climate, etc instead a free driving Mercedes.
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G550
Indeed - this reeks of the elusive perpetual motion machine. The car's movement drives a generator that provides electricity to perform hydrogen yielding electrolysis, and the hydrogen fuels the car's motor that makes the car move to power the generator to make more hydrogen. The combusted hydrogen combines with oxygen to become water again and refills the water reservoir to be used again to make hydrogen. You can drive across a continent using a continuously recycled gallon of water. Bon voyage!
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MBWorld Fanatic!
Joined: Dec 2011
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From: Spain UTC/GMT +2 hours
W213 All-terrain
Indeed - this reeks of the elusive perpetual motion machine. The car's movement drives a generator that provides electricity to perform hydrogen yielding electrolysis, and the hydrogen fuels the car's motor that makes the car move to power the generator to make more hydrogen. The combusted hydrogen combines with oxygen to become water again and refills the water reservoir to be used again to make hydrogen. You can drive across a continent using a continuously recycled gallon of water. Bon voyage!
Thread Starter
Junior Member
Joined: Dec 2019
Posts: 31
Likes: 2
GLA250 H247, C300 2019 Coupe
Indeed - this reeks of the elusive perpetual motion machine. The car's movement drives a generator that provides electricity to perform hydrogen yielding electrolysis, and the hydrogen fuels the car's motor that makes the car move to power the generator to make more hydrogen. The combusted hydrogen combines with oxygen to become water again and refills the water reservoir to be used again to make hydrogen. You can drive across a continent using a continuously recycled gallon of water. Bon voyage!
just curious of additional milage claimed
its not perpetual machine. you still need to fill up gas and top up the hydrogen tank with water everytime when car tank empty.
you still need to tune the hydrogen/air mixture when using hydrogen generator.
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From: Colorado
G550
The point everyone is making is that more energy is expended converting water to hydrogen than there is energy gained when combusting hydrogen back into water. But try it and see -- we're all curious.
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2019 C63CS
Mostly snake oil from what I can see. As pointed out above, there's the first and second law of thermodynamics. It takes more energy to produce hydrogen using electrolysis than is gained from burning the hydrogen afterwards. Claims are being made, but when challenged none of the devices have passed the challenge. Mostly negative results.
Wikipedia while not always the best source sums it up pretty well.
https://en.wikipedia.org/wiki/Hydrogen_fuel_enhancement
Wikipedia while not always the best source sums it up pretty well.
https://en.wikipedia.org/wiki/Hydrogen_fuel_enhancement
