if you dont have an ICE car, i think id prefer propane over gas? ill likely have the propane tank for a grill anyways

In this context, "gas" is "natural gas" delivered continuously through pipelines directly to your property. Propane is delivered by truck periodically, and stored in tanks on your property. Gasoline and diesel would also be delivered by truck periodically.

I think he is talking about natural gas rather than gasoline/petrol.