

It’s a formulation of various hydrocarbons.
You excite it in a closed chamber and capture the expansion of gasses. You then use this captured energy to make something magnetic spin around next to some coils.
This in turn will create a flow of electrons you can use to drive a motor.
Now do PM and VOC levels at petrol stations.
Then PM and VoC levels on roads entirely occupied by combustion vehicles, and entirely occupied by electric vehicles.