Amazing! Last time I drained my generator, it ran a lot longer than I expected. I plugged in the electric edger and weed whipper and did my front lawn. Couldn't be more than a cup of gas total between the bowl and the tank.It's amazing how when it seems like you've just got a splash of fuel left in the tank and you want to run your generator out of fuel, the sucker will run for an hour with a load on it.