Cape May Court House: While your intent is noble, there is a much simpler solution called the gas can. I always keep 5 gallons in approved container in case of emergency. Those 5 gallons will conservatively allow me to travel 100 miles, and If can’t find gas within 100 miles, then I was foolish to waste the time and gas in the first place. You can occasionally rotate the gas to prevent it from going stale, or have a source for ethanol free gas, which will last for several years when properly stabilized. Keeping your safety within your personal control is the path you seek, because Cape Maybe..