Heck NO if it a gas unit or Uses Bunker C
Yes.
no
You should not run gas from the furnace to any appliances.
I have gotten friends going after they have run their homes out of oil with diesel until they could get a delivery.
Don't try to do it yourself. Be safe and try to get a furnace technician to help reignite the oil/diesel furnace from a company that specialises in furnace repair instead.
If you are talking about standard #2 diesel fuel oil and not motor oil and you have a #2 oil fired furnace or boiler in the home the answer is yes .
If your furnace is opperating correctly and the vent is in good opperating condition, You can run the furnace non stop forever.
what type of "HEATING OIL" #2 #4 #6 (Bunker C )
In general, yes. But they've put big taxes on diesel. I have also converted an #2 oil furnace to reliably burn the motor oil from our van fleet
Gasoline engines cannot run on diesel. Only a diesel engine can run diesel. And a diesel engine cannot run on gasoline.
yes you can as a temporary solution but MAKE SURE you don't accidentally use gasoline or you'll be sorry
Diesel engines run on diesel fuel. Gasoline will destroy a diesel engine.