In 1976 a car rolled through a southern Soviet city with ordinary water vapor trailing from the exhaust. At the wheel was engineer Anatoly Mishchenko, a man who believed ordinary water could loosen the country grip on gasoline.
The work started at the Institute for Problems of Mechanical Engineering. Mishchenko system treated water as a hydrogen source. A compact electrolyzer reactor, or a metal hydride storage setup, fed hydrogen into the combustion chamber either with a small gasoline cut or as the main fuel. That mix let the engine run on leaner blends.
On paper the prototype looked strong: toxic emissions fell by an order of magnitude, with mostly clean steam at the tailpipe. Adding hydrogen to gasoline cut fuel use by roughly 30 to 40 percent. The engine ran smoother, with less knock, which promised longer life for the hardware.
A lab that looked like a garage startup
Mishchenko group worked with what today would be called garage startup constraints, except they still had access to an academic institute, advanced chemistry, and metallurgy. Test beds were ordinary Zhiguli bodies and promising ZAZ models.
They also attacked one of the hardest hydrogen problems of the era: safe storage. Instead of high pressure tanks, they used metal powders that absorbed hydrogen like a sponge and released it when heated. That approach was years ahead of many Western experiments at the time.
Why it never scaled
Popular myths blame a KGB conspiracy. The real killer was dry economics and a rigid planning system. A national hydrogen fueling network looked pointless to Gosplan. Rare earth metals in hydride packs made the cars too expensive for ordinary buyers. And in the 1970s the USSR doubled down on oil exports and conventional engines. Anything that forced a rebuild of the fuel industry looked like a costly adventure to officials.
After the Soviet collapse Mishchenko kept pushing the idea, but the window had closed. Some paperwork scattered into private archives. Fragments of the research later surfaced in foreign startups.
