Depends on how thick/thin the lawn is imo. Fertilizing in spring also encourages weed growth so given how thin my lawn is I also went with Scotts Starter w/ Weed Preventer. Has a pre-emergent that also allows new grass seed to grow. If it is well established I would throw down a fertilizer but make sure it doesn't have a pre-emergent in it.
No real cold weather coming in. Check your soil temps. I like low 50s, just takes longer to germinate. I'd rather go early and have less germination but lasting than later in spring and have it all burn up in July.
LOVE the prancing moose emblem. Volvos > Subarus in the snow after my wife and I have owned one of each. Wouldn't mind a V90 with a 3" lift on it one day for a winter whip lol
I hope you get it but almost wonder if you would have more luck with a sneaky Norland? Parts of coastal Maine from Camden to MDI have got a couple in the past decade that put down 6-12".