“The hydrogen is directly injected into the air-fuel mixture just prior to combustion. The hydrogen helps the mixture ignite faster and more completely, resulting in greater power using less fuel and creating fewer emissions.”
Technical context: The claim above describes a manufacturer’s proposed on-board hydrogen electrolysis product in 2020. A net fuel-saving claim would need independent testing that accounts for the energy consumed by electrolysis, rather than only combustion characteristics. The historical source is preserved below.
Source:Australian company introducing on-board hydrogen electrolysis unit to reduce diesel consumption and emissions
Also: $1 Trillion by 2025 – Hydrogen market is already here and now