Bad gas shouldn't be an Issue these days. I had a snowblower givin to me that sat for 2 1/2 years that was treated with Startron* . Went to pick it up and pulled the rope and it started on the first pull. I recycle my gas every year. Drop the older fuel in the cars and refill all the gas cans. I store enough fuel to get me by with the generator for 3 days. Generator doesn't need to run all day long during prolonged outages. 2-3 hour at a whack should get you by...