Big Red Mack

I live in the very hot south USA. Heat index averages 98-102 😅. They changed two injector “sleeves”. Not the injectors though. My manifold pressure gauge reads about 25 psi at 70 mph flat ground loaded, it will rise to 35 psi on a big upgrade climb. Before the major engine work I would have a slight trace of slobber near the waste gate. This seems excessive, however I never have to add oil. It is always in range on the dipstick. I truly think it’s internal because of the lack of power on an incline. As for the break in, I had this rebuilt 18 months ago. And I did bobtail(no trailer) about 250 miles home, but it has seen plenty of weight since.

I have a 2006 CXN with a 460 hp. It had a complete Inframe at the dealer with a new cam a reman head and the other head reworked. Ever since the repair it will leak oil “sometimes” when the I idle on my 10 hour break. I changed the brake air compressor and the turbo. It still leaks. You can see in the pic it comes out the exhaust manifold, and turbo flange. Took it back to dealer they “ resealed” the lower exhaust studs. They don’t think it’s the rings because the valves aren’t black they looked grayish. Any thoughts? Also it doesn’t pull a hill since the rebuild at all. It actually pulls worse than before the inframe!