Sounds like a plan.
I just checked my 2002 GMC Sierra owners manual. And--- SAE 10W-30 is recommended for Temps above 0 degrees. 5W-30 for Temps below 0.
Add some time and gasoline blow-by into the oil and it will thin out any oil, if you start out with 5Water-30, it gets thin fast.
I am in ND, when it gets cold, I plug in the block heater.
5Water-30 helps the auto manufacturers meet the Al Gore EPA Gas ratings Soviet Government control Laws.

Just changed my Mobil 10w-30, had about 4200 miles, lifters ticking a little. New oil made it quiet again.