4 Radiators grills on UP SD70Ms

[broncoman]

It moved out of sight before it had sunk in. It could have been just four grills not four cores. I was expecting that the last of the UP SD70 orders might be SD70DCe as EMD would be changing their production line, but this unit looked like most flared sd70ms not like the one in the trains article.

[broncoman]

I was watching a train go by yesterday and thought I noticed that the lead engine, a low 3800 number, had 4 evenly sized radiators on the side instead of the normal 2 rectangular ones. The overall size was the same just four grilles instead of two. Has anyone else seen this, and what would be the advantage?