Reply #33: No different to the urea injection systems used on some Mercs.

[TheMadMonk]

If you'd actually read the article, you'd find it was being reformed from the truck's (or ship's) own fuel.

For smaller vehicles, gaseous hydrogen stored under pressure is more than sufficient, and little enough is used that a refill would only be every several fills of the fuel tank just as it is with the Merc's urea injection system.


Personally I'd love to see the end of the Infernal Combustion Engine. Failing that, I'd like to see they were as clean as possible.