For long term storage (over two months), absolutely DRY, the engine run until it cannot restart or even fire as there is no fuel in the entire system. Then ensure the engine valves are closed (on the compression stroke) and SEAL the gas cap so no air can deposit its moisture.
Short term: absolutely FULL, with stabilizer, so no condensation can occur.
20 yrs as a small engine mechanic taught me these things. You haven’t lived until you smell a chainsaw with 3 year old fuel mix in it OY!
Thanks, Don.
That’s exactly the advice I was looking for. And it makes perfect sense.