Ill be logging everything and moving back to a 5-20 AMSOil dominator (currently 10-30)
Oh, man, I don't think your oil cooler plans will spark nearly as much debate as this! I'm guessing that Acura specced a xW-20 oil for that motor? In which case, it should be fine. The Dominator oil is probably on the thick side, too.
EDIT: Yeah, HTHS of 3.1 which is really 30WT territory. It'll be just fine. I did this in the Miata, actually, with Red Line 20WT racing fluid.