I have some relatively fresh, treated 50:1 to flush through my chainsaw and toss in the weedeaters. Hopefully no issues and they run fine.
I will crack out the Husqvarna tiller, it should be fine, the oil is relatively new and the fuel was treated.
Last weekend, the Champion generator came out, tossed in fresh treated fuel and it fired up first pull.
Of course, its was +20c the other day and today, well, below freezing and a snow storm. Things can wait.