newbie oil cooler questions
 

Hello everyone, I have owened my 2004 6.0 for 7 years now and never had an issue. Currently 135xxx miles. I have just discovered oil in my coolant and ran a scanner to see my ect and eot delta.It was 28 degree diff @ 65 miles an hour freeway.I am gonna change the oil cooler and egr cooler.Is there anything else I should replace or change?How about hpop , ipr , icp?

Thanks