[STORMINORMAN]

...a quality 20W-50, even better, a 100% synthetic 20W-50 like Amsoil's, would not be a bad choice in a relatively hot environment, especially if the vehicle is being driven long distances at higher speeds. Not necessarily the optimum choice for a lot of short trips in Nome.

A 15W-40 HDEO such as Delo, or AGAIN, a 100% synthetic like Amsoil AME is probably a viable solution/sort of compromise for year-round application.

Either of the synthetics could be used in a significantly longer oil change interval scenerio. Oil analysis may be indicated for really long intervals, but 10, 12, 15K is easily attainable with quality synthetics.

All IMHO, of course. It depends where and how much you drive.

I use synthetics (Amsoil) in my motorcycles and in my Mercedes. I personally used a 10W-30 dino (Chevron Supreme) or, recently, Valvoline MaxLife (a semi-synthetic) 10W-30 in my SVX. The MaxLife because it was free. I get 28+ mpg on a typical 500 mile trip.

Cheers!