This subject comes up often and just as often will draw debate over which is best.

My opinion using Sea Foam or Stabil is the better option. A fresh mix of good stoke mix with the appropriate addition of fuel stabolizer. Fill a empty equipment tank, start and run for a couple of minutes to make sure the fresh mix has passed through the carb and put away making sure the fuel cap is tight. Put away in a cool protected spot.

My opposition to running out of fuel is that unless you take the carb apart to physically dry out the innards there will be residual fuel left in the carb that "can" be enough to varnish up the works. Not always as is apparent from many who have done this with good success. The second "possible" problem with leaving things empty is moisture condensation in an empty fuel tank. Again this is not a for sure problem. Putting unit away in a cool,protected and dry location will make a big difference.

If you live in a high humidity climate such as in the souther U.S. this condensation problem becomes a bigger factor but still not something that always happens.