Don't get hung up on canned fuel. So it doesn't contain alcohol.... Yes alcohol is a pain, but you can deal with it without spending a fortune. This is how I would deal with it.<br><br>Personally I would look at the yamaha because it has a fuel shutoff going to the carb. When you are done using the generator, you unplug/shut off your electrical loads and turn the fuel shutoff to off. The engine will continue to run until it uses up all the fuel in the carb. You will still have fuel in the on-board tank, but no fuel in the carb to gum up the passages.<br><br>RJcooper is partially correct in saying that you should store fuel in the carb. This statement is true with carburators that have diaphrams. This usually includes chainsaws and some small engines. I am pretty sure this does not apply to either the honda and yamaha because they do not have diaphrams. But honestly don't take my word for it. I am sure you can download the manual for both these machines and it will have instructions on how to store the generator.<br><br>Neither the honda or the yamaha are designed to power 12v appliances. More like a oh crap I killed my car battery and I need to charge it up enough to get my car started.<br><br>You can buy the honda or yamaha pre-converted to run on gasoline or propane. Propane is more expensive, but doesn't go bad, isn't as messy. Propane is ideal if you only plan to run the generator occasionally and don't want to deal with the hassle of gasoline. (note having your carb cleaned is not covered under warranty and not cheap)<br>If you plan to run the generator a lot then the cost effectiveness of gasoline usually out ways the convenience of propane. I am guessing that a propane conversion will also void the warranty that comes with these generators.<br><br>Oh and decibels are not linear at all, you would have to look at chart, I want to say they increase exponentially. pretty sure its not as simple as "every 10 decibles is 2 times louder", but again don't just take my word for it just google it, if you care, then you will know for sure.<br><br><br>Oh and on what fuel to use, again download the manual, Honda and Yamaha will tell you exactly what they want you to use, no need to ask us and get 10 different answers.