For those of us down south, it's hurricane season and time to check our generators. Many of our chinese generators - my HF generator included - seem to have come with fuel lines that weren't meant to be used with ethanol. On top of that, we really haven't had to use them for years now. I just checked mine this morning, and that got me going to the store to get new line and new fuel. Mine was hardened up and cracked (just at the bend from the petcock), and it would have failed when I needed it. So glad I checked it. Loaded the fuel can and Jeep up with this fuel... just for longer-term storage.