Oil: I would look at a 0W-30, 0W-40, or 5W-40 year-round. You can also simply use 5W-30 year round. Some people burn up M1 5W-30 but there are others that don't, and there are other options. I use a 5W-40 but have also been fine with a 0W-40. M1 makes both; Shell makes a good 5W-40 also.
Gear oils: Valvoline regular 75W-90 GL5 year-round.
Coolant: Subaru super coolant (blue) or regular Subaru coolant (green) in that order of preference. Add Subaru coolant conditioner.
For a short commute, keep the motor oil changes relatively frequent (I'd start at 4,000 miles and do a used oil analysis to see if that's OK, and go from their recommendations based on the data then).