Anything intergrated in the block that cools oil via coolant or anything (I know some cars have this).

I just realized that I towed 6000lbs this weekend without an engine oil cooler of any sort

 

There is a tap on the side of the oil pan for an oil cooler. They dont put it on the half tons to my knowledge. It is there for the HDs and such. I never had a problem with oil life back when I towed an 8500# boat 250 miles every weekend during the summer. Dont worry about it. That was also in 100+* south texas weather.