I towed my 11500# 5th wheel up in the Sierra last week and everything went well using the PHP 40hp tow setting instead of the 65hp tow setting. Power was good egt manageable with throttle inputs. My concern is with the eot, it hit 235 to 237 on a long steep climb where boost was 18 to 20, egt 1220 to 1280, ect 217. I was in 4th maintaining 55 mph. Once I crossed over the top of the hill eot did drop back to the normal for this truck 217 to 221. I read my eot and ect from a scangauge and also two direct reading gauges for ect and eot. My truck is a 6 speed so I can read ect. I have read that eot above 240 may be reason for concern am I right?