Hi, new to site. I've got an 06 6.0, have oil cooler and egr cooler replaced about 6 months ago. Sinister oil/egr cooler and seals. Noticed wrench light on twice couple weeks ago. Got a monitor and after running engine to temp and about a 15 min drive @ 60-65 mph on flat road ect 188-190 eot 125-128. Running rotella t6 synthetic and final charge global with coolant filter installed when coolers were installed. I really don't want to have to do cooler again. Any help would be appreciated.