Nick, I have a small setup in the engine bay that produces hydrogen gas on demand, which is piped into the air intake. Ive run it on diesels before, with improved exhaust smell- not empirical test I know, but an assumed cleaner burn. Google HHO generator and you`ll get the picture.
I believe Honda were working on an Ethanol based generator for larger volum H production in a Hydrogen fuel cell powered car- not sure where that ended.
Last edited by Treesurveyor; 13/03/22 09:57 PM.
