it says you can fill a pill bottle with potassium perm drop that into a gas tank and itll blow...but no pill bottle is small enough to fit into the gas tank. It also says if you have no bottles you can use ziploc bags but I dont see that working well either. any suggestions on this method?

theres another method with the same difference except pipe bomb style that blows from concussion or just time. Im thinking this would be more work in preparing but more easily executed....hhmmm

any other suggested methods that are easier?

Won't work.