It brings up some interesting points in my mind to be honest.
IPO claims that propane doesn't actually end up cooling the intake much. They claim that the propane has pretty much warmed up by the time it hits the intake. Im not sure on the OGS thoughts on this.
Propane is supposed to be a catalyst for gasoline just not as much as it is for diesel.
Propane and alcohol probably both raise octane
Alcohol/water has a very good cooling effect.
if the above is true, alcohol and propane work for completely different reasons and could possibly make one heck of a combo.
Propane for octane raise, better burn, and supposably lovers hotspots
then add alky for its great cooling effect and additional octane.
and apple and an orange could equal something nature never really intended here that on paper looks like it could possibly push normal gas to a higher level than race gas, and if not maybe we could run 85 versus 91-94 on the street. It's interesting to me at least.