if you have a good program of oil analysis, with good control of contaminants and established baselines, I'd try it and see the results on succesive analysis.
We have so many pieces of equipment in Bolivia that are porely maintained (and bought used) that I can't recommend it locally.
I'd love to try it in the western part of the country where the altitude is >12000 ft, and temps every night below freezing, but I woun't recommend it where there is poor maint. control, and being a two day drive in 4x4 from your boss makes a lot of maintenance people lazy.
We end up using 15W-40 up there and here in the tropics in newer equipment. We use 20W-50 in the older equipment until re-build. (reduces consumption).