OK...I've got a 2003 F250 6.0L Powerstroke Diesel....The truck has right at 124,000 miles on it. I had to replace ALL 8 injectors last week and the trucks FINALLYrunning great...They told me at the shop to monitor the Engine Oil Temp and the Engine Coolant Temp and that they should not differ more that 15 degrees. Its 88 degrees today in Oklahoma, just driving to and from work and there is already a 14 degree difference in the EOT and the ECT) (EOT @ 212 degrees and the ECT is at 198 degrees)...I do run an Edge Evolution programmer set on level #1 (Economy) which only boosts the truck 15 hp...Is it normal for this temp difference with only a minor HP boost? When I changed it to stock, the temps vary no more that 8 or 9 degrees...However, If I pull my 3-horse trailer on Level 2(60 hp boost)....The EOT will climb to 230 degrees causing the programmer to flash a preset temp warning on the EOT...The ECT goes no higher than 195 to 200 degrees...I'm not losing any engine coolant and the truck seems fine....I've read the horror stories about the Engine Oil Cooler getting clogged etc, etc, etc....Does anyone have any ideas on my problem??