yeah I will try to data-log the coolant temps if the odbII port shows it.......

It does.

The SETRAB is a good oil cooler but keep in mind they cannot be repaired because of the size of the tubing. I use their largest (60 rows) on our Diasio D962R. Looking at almost $600 to replace one if they croak. We have found that they are prone to vibration and frame rigidity. Finally after replacement #4 I think we have it mounted it in such a way that there will be no future issues. They make a 90 degree swivel fitting which helps and is not listed on thier site. It's a 22mm to -12AN hose. They can take a lot of oil pressure BTW, we run 120 PSI.