Well just got back. Truck did great! A lot more comfortable towing the 5th wheel and quit pussy footing it in 5th lol. She likes 70 in 5th, boost comes on strong if you just give it some load and let them spool. Mpg was better as well. Averaged about 8.5 letting it stay in 5th. Turbo brake was great on some of the big descents, engine and turbos singing at 3200 rpms was sounding great and slowed it right down.
Didn’t end up having time to get fuel cooler installed. Tried filling up around half tank. Had a laser temp gun and peak I seen first fass filter at was 135. I’ll still get her installed though. Never seen coolant temp go over 204.
Did have 1 blow out on the trailer though hour and half into it. Buddy of mine owns a good year tire shop. We ended up throwing 6 brand new goodyear endurance tires on. Supposed to be one of the best tires so we will see!