Yeah, that's right, I've seen many forklifts with a propane bottle.
I will read the Wikipedia writeup on propane.
Wyantry wrote:
Correct. MUCH cleaner burning. Much lower quantity of HC, CO, SO2, SO4 emissions.
Essentially, burning propane (C3H8) gives CO2 and water by the reaction:
C3H8 + 5O2 —> 3CO2 + 4H2O + heat
See the discussion for propane on Wikipedia.
40 000 + Forklifts can’t be wrong!