Going back to the oil for a moment, I did find this Mobil 1™ Turbo Diesel 0W-40
Would this be something to consider for mid-winter use? I'm most likely going to run the 5w-40 for the majority of the year and potentially switch to the 0w-40 I linked to in the dead of Chicago winter, unless there are any objections. On a side note, is it possible to purchase the 180 stat at any brick and mortar stores? Thanks again for the input guys. I found a very low mileage discovery that I may potentially have in the garage this weekend (fingers crossed) I'll update if all goes well. Thanks again for everyone's advice.